Search Results

When it comes to surveying land, traditional methods are rapidly being overshadowed by the innovative use of drone technology. Drones, or Unmanned AircraftSystems (UASs), offer unparalleled precision, efficiency, and versatility, making them an invaluable tool in modern surveying. Whether it's for topographical land surveys , construction planning, asset inspection or environmental monitoring, drones provide detailed aerial data that enhances accuracy and saves both time and money. This blog explores the myriad benefits of using drones in land surveying, highlighting how this cutting-edge technology is transforming the industry and setting new standards for excellence. What Are Aerial Surveys? Aerial surveys involve the collection of geospatial data from an elevated position, typically using aircraft or drones. This method captures detailed and accurate imagery of the land, which is then used for various analysis and mapping purposes.  Equipped with high-resolution cameras and LiDAR sensors, drones fly over the survey area, systematically capturing a series of overlapping images from various angles. These images are processed using photogrammetry software, which stitches them together to form a comprehensive, high-resolution 3D model of the landscape. LiDAR-equipped drones go a step further by emitting laser pulses to measure distances precisely, even penetrating through vegetation to capture the ground surface accurately. The resulting data is used to generate detailed topographical maps that illustrate the terrain's contours, elevations, and features with remarkable precision.  Here's a look at what aerial survey services involve: High-Resolution Imagery:  Capturing detailed photographs of the survey area. LiDAR (Light Detection and Ranging):  Using laser scanning to measure distances and create precise 3D models of the terrain. Photogrammetry:  Utilising multiple photographs to create accurate 3D representations of the surveyed area. Multispectral Imaging:  Gathering data across different wavelengths for environmental and agricultural analysis. Data Analysis:  Using specialised software to interpret and analyse the collected data. 3D Modelling :  Creating detailed three-dimensional models of the terrain and structures. What Are the Benefits of Having an Aerial Survey? 1. Time and Cost Efficiency Faster data collection and analysis. Reduction in labour costs and field time. Cost-effective for large and remote areas. 2. Access to Difficult Terrain Surveying inaccessible or hazardous areas. Ability to cover large and diverse landscapes. Safe and efficient data collection in challenging environments. 3. Early Detection of Potential Issues Identification of environmental hazards (flood zones, erosion). Detection of illegal structures or land use. Early discovery of zoning or regulatory compliance issues. 4. Support for Planning and Development Detailed data for site planning and design. Enhanced visualisation through 3D models. Improved decision-making for infrastructure development. 5. Environmental Impact and Sustainability Minimal disturbance to the environment. Preservation of natural habitats during surveying. Sustainable approach to land assessment. How much do drone surveys cost? The cost of aerial surveys in the UK can vary widely based on several factors, including the survey's scope, technology used, and geographic location. Here’s a breakdown of cost considerations: Survey Area Size - Larger areas require more flight time and data processing, increasing costs. Terrain Complexity:  Difficult or hazardous terrains may require specialised equipment or additional safety measures. Data Processing Requirements - More complex data analysis and higher resolution mapping will increase costs. What are the key considerations for drone surveys? As professional surveyors and structural engineers offering drone survey services , we understand the importance of meticulous planning and strict adherence to various technical, regulatory, and operational factors to ensure successful and compliant operations. Here are the key considerations we address: Compliance with CAA Regulations We obtain all necessary airspace permissions and have qualifications from the Civil Aviation Authority (CAA), including Operator ID, Flyer ID, and Operational Authorisation. If there are any flight restrictions, we stay fully informed about and comply with no-fly zones, restricted areas, and altitude limits. Privacy and Data Protection We ensure compliance with the Data Protection Act 2018 when capturing imagery or data, safeguarding personal information and privacy. Out of respect of neighbouring property owners, we avoid flying over private properties without consent and stick to the Surveillance Camera Code of Practice. Site Assessment We conduct thorough site assessments to identify potential hazards, access points, and optimal take-off and landing zones, ensuring a smooth operation. There are factors which we can’t control such as the weather so if there are high winds, rain or fog, we may have to reassess and book the survey for a day with better weather conditions. Safety Protocols We perform comprehensive risk assessments to identify and mitigate potential hazards, ensuring the safety of our operations. Our drone operators have emergency procedures in place to manage incidents such as drone malfunctions or loss of control. Flight Planning Our team of drone operators meticulously plan efficient flight paths to ensure complete coverage of the survey area, optimising data collection. To make sure we avoid battery outages, we plan ahead to avoid interruptions and make sure we are fully equipped for the job. By addressing these considerations, we ensure that our drone surveys are conducted safely, legally, and effectively, providing high-quality data while respecting privacy and minimising environmental impact. How to Arrange a Drone Survey  If you're ready to experience the transformative benefits of drone surveys for your next project, arranging one in the UK is easier than ever. Get in touch with our team and let us know your specific needs, whether it's topographical mapping, environmental assessment, or construction planning. We can then provide a quote for a survey to suit your needs. You can contact us on 0845 456 1104 or request a survey here .

It’s no surprise that there’s a lot under our feet. Whenever a new development plans to go ahead, landowners and developers need to know exactly what is underground before the project can start. Surveys are an essential part of the planning process. To get a clear picture of the underground infrastructure, engineers need to assess the ground using different technologies to detect what’s under the earth. This includes using GPR (ground-penetrating radar) and Radio-Frequency Location (RFL). At SUMO Services, we offer PAS 128 compliant Utility surveys to ensure full compliance with building regulations. Utility surveys can map out pipes, cables, ducts, sewers, and drainage. This data then ensures that the development can go ahead.  What is an Underground Utility Survey?  Underground utility surveys are similar to a typical land survey except, like the name suggests, underground. This particular survey determines the type of utility infrastructure that exists. Underground utility surveys are needed to pinpoint the exact location of utilities so that contractors can plan accordingly.  Without an underground utility survey, you run the risk of extra planning time, an increased risk of injury, and higher costs further down the line of the project. These types of surveys allow contractors to excavate confidently without fear of what they might run into.  What does an underground utility survey involve? When contractors arrange a utility survey, they receive a comprehensive report detailing the location and type of underground utilities such as water, gas, electric lines, and telecommunications cables. The report typically includes maps and schematics including details on the depth and positioning of each utility. Advanced surveys may also feature 3D models and Geographic Information System (GIS) data for enhanced visualisation.  The survey process usually takes anywhere from a few hours to several days, depending on the size and complexity of the site. The timeframe is influenced by factors such as terrain, accessibility, and the density of existing utilities. This thorough documentation ensures safe and efficient planning and execution of construction projects, minimising the risk of damaging critical infrastructure. Why are underground utility surveys needed? An underground utility survey is essential for several reasons, offering significant benefits in terms of safety, efficiency, and cost-effectiveness. Here are the primary reasons why such a survey is important: Safety Striking a utility line can cause serious injuries or fatalities. Identifying the location of underground utilities such as gas lines, water pipes, and electrical cables helps prevent accidents during excavation or construction. Damaged gas or sewage pipes can lead to environmental contamination and health hazards so it’s crucial to be in a position to avoid dangerous mishaps. This also prevents accidental contamination of water supplies and surrounding land. Cost Savings Repairing damaged utilities can be extremely costly. By knowing where these utilities are located, project planners can avoid unnecessary damage and the associated repair costs. An underground utility survey helps keep projects on schedule by preventing such incidents. Hitting an unmarked utility line can cause significant project delays, which means using up more time and more resources to fix in order to finish the extra work.  Legal and Regulatory Compliance Many regions have laws and regulations that require utility surveys before any digging or construction. To avoid any potential penalties, all construction work will need to have the relevant surveys done before carrying out work to prove that full due diligence is completed.  Efficient Planning and Design Knowing the precise location of underground utilities allows engineers and planners to design projects that account for existing infrastructure, optimising the use of space and resources. With a clear understanding of underground utilities, project managers can more accurately budget for potential utility relocation or protection costs. Enhanced Communication An underground utility survey provides detailed documentation of existing utilities, which can be shared among contractors, engineers, and stakeholders to ensure everyone is informed. Surveys help facilitate better communication and coordination with utility companies, ensuring that any necessary utility relocations or protections are managed effectively. Property Value and Management For property buyers, knowing the location of underground utilities can be a critical factor in the decision-making process. Property owners and managers benefit from knowing the location of utilities for future maintenance, renovations, or landscaping projects. Get in touch with a surveyor and arrange for a free quote An underground utility survey is crucial for ensuring the safety of construction workers and the public, minimising costs and delays, complying with legal requirements, enabling efficient project planning, and protecting existing infrastructure. Before starting any major construction work, your first step is to find out any complications waiting under the surface. We can help you to get a clear picture of what you are working with. We offer a number of different surveys to match the specific requirements for every construction job possible. Whether you need to have accurate utility mapping and data for repair work or wish to provide a contractor with topographical data ahead of planning, our surveyors can provide a bespoke service. We quote on an individual basis as every project is unique. To receive a free quote, you can get in touch with SUMO services by calling on 0845 456 1104 or through using our online quote service here .

For any building project and purchase of new land, land surveying is an essential part of the process. Landowners and property developers should arrange to have in-depth surveys to guarantee that there are no surprises that could end up being costly. The most common reason for needing a land survey is for legal purposes to clearly map out property boundaries. A survey will give you peace of mind and security should there ever be any disputes. Land surveys provide a thorough map of the given area, providing topographical data regarding the land’s natural features as well as ascertaining the condition of man-made structures. SUMO services conduct a number of different types of land survey, using cutting edge technology such as the very latest Total Stations available on the market.  We also offer aerial surveys to give a broader picture of the land that you’ve purchased.  Once you have finalised the purchase of new land, it makes sense to know every detail of what the land entails. Land surveying is a critical process that supports property management, legal compliance, construction, environmental protection, and urban planning, delivering benefits to the landowner. Land surveying offers several significant advantages, both in practical and legal terms. This article lists out the different advantages and why land surveying is such an important part of construction.  1. Accurate Physical Property Boundaries: Land surveying provides precise measurements of property extents, which can assist resolving disputes between neighbours and ensuring that land is used and built upon correctly. A land surveyor will use hi storical records as well as take accurate measurements to mark out the physical extents of the property. Accurate surveys are a critical part of a  customer legal teams documentation, providing evidence of the physical property extents in property disputes and ensuring compliance with the local authority. When dividing land into smaller plots, surveys are necessary to create new, legally recognized property boundaries. 2. Construction and Development: Surveys are essential for planning construction projects . They provide crucial data, helping developers understand the topography, soil condition, and other physical features of the land, which are vital for project planning and execution. They help in designing building structures, roads, and utilities, ensuring that these are positioned correctly and safely.  3. Property Value Determination: A survey can provide a clear understanding of properties land dimensions and features, which helps in accurately determining the property’s value for sale or purchase. Having a survey puts you in a stronger position to negotiate on the sale. Part of the terms of the deal could ensure that the existing owner rectifies the risk before signing over the deeds.  4. Environmental Preservation Land surveying helps in identifying natural features like wetlands, flood zones, and protected areas, ensuring that development is environmentally sustainable and compliant with regulations. A surveyor will also be able to confirm whether trees on the land are protected by the Forestry Commission.  5. Risk Management: By providing detailed information on land features and boundaries, surveys help in mitigating risks associated with construction, such as ensuring buildings are not placed in hazardous areas. Being aware of any potential risks puts you in a better position to manage the problem. Part of a land survey will also determine the risks of flooding. If the land is on a floodplain, a topographical survey will map out the depth of the water table and assist in securing control measures to protect the property. 6. Local Infrastructure Planning Surveys assist in urban planning, infrastructure development, and public works projects, ensuring that developments are sustainable and beneficial to the community. Surveys are essential for public land usage and ensuring all public spaces are safe and compliant. Surveys identify any existing right-of-ways, which are essential for ensuring access and usage rights are respected and maintained. How to Get Started with Arranging a Land Survey  The first step is getting a quote from an engineer. At SUMO Services, we carry out free survey quotations and will provide clear guidance on the process as well as what to expect from the service. We can arrange for a variety of different surveys depending on the purpose and results you’re after. Our team of experienced engineers use the latest surveying technologies and techniques to accurately record data. Whether the purpose is for a house purchase or for a new development project, we can assist with uncovering any secrets hidden underground.  Our team operates country-wide so if you need a survey, simply request a quotation here. We are also more than happy to answer any questions about our services. You can give us a call on 0845 456 1104.

The latest from, providing a range of aerial and geospatial surveys using drones, known commercially as UAS (Unmanned Aircraft Systems). Ask the Audience! It is important to us that you are as informed as possible when commissioning a drone survey to make sure you know exactly what you can get out of it. Your Questions Answered Please see a selection of questions below that we are frequently asked ahead of our surveys. What is multispectral and how does it work? In brief, multispectral uses a sensor array which collects images at different wavelengths. These images can be processed to identify the health of plants on the surface. Since plant health can be influenced by sub-surface features, multispectral surveys can show where these features are by the appearance of the plants in the processed image. Therefore, archaeology or geological anomalies such as solution features, may still be revealed by drone multispectral mapping, even if they don’t leave a topographic footprint. What level of accuracy can you achieve with your georeferencing, particularly over large landscapes? We typically aim for a georeferencing error of <3 cm. On projects which require even tighter accuracy, we can combine our data with a traditional topographic survey. What solution can you offer for obtaining ground levels beneath tree canopies where photogrammetry cannot reach? We frequently collaborate with SUMO’s traditional topographic department. Where tree canopies obscure the surface, a terrestrial topographic survey can be used to fill in the gaps. Alternatively, we can carry out drone-based LiDAR which has the potential to penetrate vegetation. Is photogrammetry better than LiDAR? Each of these survey methods has its place, depending on the requirements of the project. As above, photogrammetry is preferred for open sites whereas LiDAR is better for penetrating vegetation, particularly woodland, through which it can capture ground levels beneath the canopy. What are the optimum conditions for a drone survey? In order to operate safely, it is important that we carefully consider the weather for every job we carry out. Generally, we aim for days which are dry with low winds and proceed only if it’s practicable to do so. Very often, we only find out what the weather will really be like when we arrive on site. Each of our survey methods have further nuances to encourage the best results. RGB photogrammetry works best with little shadow cast over or across the subject; multispectral photogrammetry is most effective within a two hour window either side of midday; thermal building surveys are best carried out at night when there is no solar radiation interference, whereas thermal solar farm inspections require high levels of solar irradiance during the day to be successful. How quickly can you go from instruction to delivery of results? Since drone surveys are dependent on the ever-changing weather forecast, we are very used to attending site with little notice. We always aim to meet specific dates as provided by the client and make contingencies for the weather when necessary. Initial outputs (e.g orthophoto, Digital Elevation Models, and 3D model) are provided within 2 – 5 days of the survey, and we usually allow up to 4 weeks for the interpretive report. However, from time to time a faster turnaround is required for which we always strive to meet pressing deadlines. Can you operate in restricted airspace? In short, yes, we can operate in most restricted airspace. Prior to supplying a quote, we check to see what airspace your site falls in as this may have a bearing on when we can carry out the survey. It is a legal requirement, governed by the CAA (Civil Aviation Authority) to ensure that we seek permission to fly in restricted airspace, such as FRZs (Flight Restriction Zones) for airfields, prisons, and military bases. There are few instances where drone operations are not permissible, however we are aware of these locations and can make alternative arrangements if required. Can you carry out earthwork surveys for planning conditions? Absolutely, a photogrammetry survey is the ultimate tool for identifying topographic and micro-topographic features across a site. The outputs include an orthophoto and DEM (Digital Elevation Model), the latter of which can be manipulated in GIS software to analyse the site, and an interpretive report can be drawn up to show the findings. Are drone surveys effective for topographic surveys? Since drones can map <100ha in a single day and achieve a ground error of <3cm, this method is the perfect tool for topographic surveys. Drone surveys are particularly impactful over areas which are not accessible on foot, such as busy construction sites and roads.For the most accurate results, we can combine the data with a terrestrial topographic survey to tighten the referencing, saving land surveyors time on site, and therefore reducing the cost of the survey. Can drones be used inside buildings, such as churches? Yes, drones can be operated inside buildings. We have conducted photogrammetry, and general video and photos from within buildings including churches. What outputs can you provide from a building survey? Photogrammetry surveys can produce a range of deliverables, depending on the needs of the client. Standard outputs include scaled orthorectified elevations and roof plan, and a link to a low-resolution 3D model for online viewing. Further outputs include a point cloud, high-resolution 3D model files, all survey photographs, general video, and panoramic spheres. In addition, we can combine our outputs with laser scan data as part of a detailed Measured Building Survey. If you have any questions please send them through to geosurveys@sumoservices.com Want to learn more? Please pick up the phone and speak to Simon Batsman on 07542 602 101

Before any structure is built, the land must first be understood. For architects, that understanding begins with a detailed topographic map. At SUMO Services, we specialise in providing accurate, high-quality topographical surveys across the UK, giving architects and design teams the critical data they need to create informed, efficient, and buildable designs. A topographical map is often the first and most important step in turning a vision into reality. In this blog, we’ll explain what topographic maps are, how they’re made, and why they’re such an essential tool for architects, planners, and construction professionals alike. What are Topographic Maps? A topographic map represents the three-dimensional features of a piece of land on a two-dimensional surface. It captures the site's shape, elevation, contours, and key physical and man-made features. This detailed snapshot provides architects with a comprehensive understanding of the site, allowing them to design with precision and foresight. A quality topographic map includes: Contour lines showing land elevation and slope Natural features such as trees, rivers, ditches, and embankments Man-made structures like buildings, roads, paths, fences, and walls Drainage features including gullies, culverts, and ditches Boundaries and access points Services and utilities when combined with underground mapping (e.g. PAS 128) By understanding what already exists on a site, architects can avoid surprises later in the design or build process. How Does Understanding the Landscape Help with Planning? Understanding the lay of the land undoubtedly is important in the early stages of construction. Detailed surveys reveal much of the land that only experienced and well-equipped surveyors can uncover. Topographic maps provide an informed insight that are of interest to the land owner as well as the architects responsible for turning a vision into a reality.  Here are some reasons why architects benefit from topographic maps: 1. Informed Site Planning Before a single line is drawn on the blueprint, architects need a clear understanding of the site's existing conditions. A topographic map reveals variations in ground level, drainage paths, vegetation, boundaries, and existing infrastructure—critical details that can influence everything from building orientation to foundational requirements. 2. Design Accuracy and Feasibility By incorporating accurate topographic data, architects can design structures that work with the landscape, not against it. This reduces the risk of costly changes during construction and ensures compliance with planning and environmental regulations. 3. Optimised Earthworks and Drainage Understanding elevation and slope helps architects and engineers design efficient drainage systems and plan necessary cut-and-fill operations. This is particularly important for sustainable site development and long-term structural integrity. 4. Risk Mitigation Topographic surveys help identify potential site challenges, such as uneven terrain or proximity to flood zones, before they become costly problems. This allows architects to adapt their designs early in the process, avoiding delays and unplanned expenses. 5. Planning and Compliance Accurate topographic data supports planning applications by providing local authorities with reliable site information, helping to reduce approval delays. This includes determining the access routes, land boundaries and any potential interruption to public rights of way.  How are Topographic Maps Made? At SUMO Services, we use a combination of cutting-edge surveying technology and industry expertise to produce accurate topographic data. Here’s how we do it: Initial Site Visit & Control Points We establish geospatial control points to ensure all data is measured accurately to national grid references and levels. Data Collection Using Total Stations & GPS Using high-precision total stations, GNSS (GPS) equipment, we capture detailed data points across the site. Drone Surveys For larger or complex sites, we supplement ground data with aerial drone surveys to quickly capture terrain from above, quickly and cost-effectively. Processing & Drafting Our surveyors process the data using CAD and specialist software, generating a topographic map that includes all relevant site features with contours, spot levels, and annotations. Customisation for Project Needs We tailor each map to the needs of the architect or engineer, whether it’s for residential housing, commercial development, or infrastructure planning. How Much Does a Topographic Survey Cost? The cost of a topographic survey in the UK can vary depending on the size, complexity, and location of the site, as well as the level of detail required. For a small residential plot, such as a garden or single dwelling, the cost can typically range up to £900. Medium-sized sites, like small commercial developments or housing plots, can cost between £900 and £2,000. For larger or more complex sites, especially those with challenging terrain or a high number of features, costs can start from £2,000 and go upward.  Several factors influence pricing, including the physical size of the site, the complexity and number of natural and built features, access limitations, and whether any additional services are required, such as utility mapping, 3D modelling, or high-resolution deliverables in formats like CAD, or Revit. The location of the site can also impact the final quote, especially if travel or overnight stays are needed. SUMO provide quick and accurate quotations, as the above can only be used as a guide due to the uniqueness of each project. How Long Does a Topographic Survey Take? The time it takes to complete a topographic survey also depends on the scope of the project. For a small site, the fieldwork can usually be completed in a single day, with drawings and deliverables provided within 1 to 3 working days, depending on current commitments. Medium-sized sites may require 1 to 2 days on-site, with final results typically delivered in 5 - 10 working days. Larger or more detailed projects may require several days on-site and up to one to two weeks for full processing, quality control, and drawing production. Other factors can influence the timeline, including weather conditions (especially for drone or laser scanning), the level of detail requested, and whether the survey includes additional services like PAS 128 utility mapping. Many professional surveying firms also offer fast-track or priority services for urgent projects, as well as combined survey packages to reduce time and cost. Who Arranges for A Topographic Survey: Architect or Land Owner? In most cases, either the architect or the landowner can arrange for a topographic survey. It depends on the structure of the project and who is responsible for coordinating early-stage planning. Architect-led projects: If an architect is brought in early, especially on more complex or bespoke developments, they will often recommend and sometimes organise the topographic survey as part of their design brief. They may have preferred survey partners or coordinate it to ensure the results meet their design needs. Landowner or developer-led projects: On smaller residential projects or where the owner is managing the process, the landowner or developer may arrange the survey themselves, often at the recommendation of a planning consultant, builder, or architect. Design & build or contractor-led projects: In these scenarios, where a contractor manages both design and construction, the contractor or their in-house team usually takes responsibility for commissioning the survey early on. FAQs Why are topographic maps important for architects? Topographic maps provide detailed information about the natural and man-made features of a site, including elevation, slopes, and terrain contours. This data helps architects design structures that harmonise with the environment and meet safety and functional requirements. How do topographic maps assist in site analysis? Topographic maps help architects evaluate site conditions such as elevation changes, drainage patterns, and potential obstacles. This analysis is essential for determining the best placement of buildings, utilities, and access points while mitigating environmental risks. Can topographic maps influence the design process? Yes! Architects use topographic maps to adapt designs to the natural landscape, reducing excavation and building costs. By considering elevation and slope, they can create structures that blend seamlessly into their surroundings and maximise the use of the site. Are topographic maps necessary for construction planning? Absolutely. These maps guide construction teams by providing accurate information about the site's terrain. This helps in planning excavation, drainage systems, foundation placement, and overall site development, ensuring the project progresses smoothly and efficiently. How does the accuracy of a topographic map impact architectural projects? Accurate topographic maps reduce the risk of errors during design and construction. They ensure architects have precise data for creating designs that account for site conditions, preventing costly adjustments and delays during construction. What tools or technologies are used to create topographic maps? Modern topographic maps are often created using advanced technologies like GPS, drones, and GIS software. These tools provide highly detailed and precise data, enabling architects to work with the most reliable site information. Arrange For A Topographic Survey With SUMO Services All projects start here: mapping out the landscape and planning what to do with it. At SUMO Services, we provide many different surveys to match the specific requirements of different projects: large or small. We quote our surveys based on project-by-project basis as the complexity of the survey, the difficulty of the terrain and the depth of detail needed all factor into the time spent. We provide free quotations to give you a good starting point.  Simply get in touch with our survey team online or by calling us on 0845 456 1104. You can also request a survey here.

There are numerous geophysical techniques that SUMO can use to locate voids, areas of loose / collapsed material, geological solution features or specific features such as mine workings, basements, tree roots or drains. The best technique(s) to use will depend on the site specific conditions and survey objects but can include: Technique Target feature Microgravity Voids, shafts, subsidence or solution features, deeper mine workings and adits, karst features and caves Magnetics and electromagnetics (EM) Shafts, voids, areas of infill material, buried tanks, near-surface and historic solution features, near-surface karst features, drains / culverts Ground penetrating radar (GPR) Voids, areas of infill material, tree roots, animal burrows, near-surface shafts, drains / culverts, buried tanks, basements Resistivity imaging and seismics  Geological features, such as faults and depth to bedrock. Targeted resistivity imaging can also provide depth information on voids, shafts, subsidence or solution features Boreholes and excavations can identify all of the above features but only if they are located directly over the feature. It can often take a number of boreholes to broadly define the extent of a feature and in many cases features / hazards can be missed entirely using just intrusive methods. A geophysical survey will usually cover an entire site and provides a greater level of information so that intrusive work can be targeted. Geophysics minimises risk and reduces costs! Case study 1  A ground investigation using boreholes had identified several solution features on a site where there was a history of known subsidence. It would have been very expensive (and increased the risk of further subsidence) to try and define the extents of these by further boreholes and so geophysics (microgravity and resistivity) was used. The microgravity survey defined the extent of the known solution features but also found several additional areas of voiding or loose material. These features were then targeted by resistivity imaging to obtain depth information. Above  : Microgravity survey. Above  : Microgravity data plot showing anomalies caused by solution features (blue responses). Above  : Resistivity profile (bottom) through the centre of microgravity Anomaly A shows an area of low resistance (void / loose material) extending to significant depth associated with the solution feature. Case study 2 Redevelopment of a brownfield site.  Deep excavations during ground works had uncovered an entrance to an adit but the extent and orientation of the adit was not known. Geophysics using microgravity, electromagnetics and magnetics was used across the site to locate the adit and to help identify mine workings. Above : Entrance to an adit. Above : Microgravity data over shallow mine workings showing a broadly linear area of low density material (Anomaly A) interpreted as a void associated with mine workings. Above : Electromagnetic data showing a low conductivity response (the blue area shown as Anomaly B) which corresponded with the line of an adit. Ready for a geophysical survey? Contact SUMO Services  today to learn how our geophysical surveying expertise can ensure your project’s success. From subsurface investigations to actionable reports, we’re here to support your modern construction needs. Receive a quote today. You can contact us on 01325 311751 or you can reach out to our team Online here .

The construction and land development industries are constantly evolving, and so are the tools we use to measure, map, and manage land. One of the most transformative advances in recent years has been the integration of drone technology into land surveying. If you're still relying solely on traditional surveying methods, you may be missing out on faster data collection, improved accuracy, and valuable insights that can significantly enhance your project outcomes. At SUMO Services, we harness cutting-edge drone technology to deliver accurate, high-resolution data for sites of all sizes across the UK. In this blog, we explore why surveying without drones could be holding your project back and how embracing this modern approach can give you a real competitive edge. The Evolution of Surveying Technology Traditional land surveying has long relied on tools like total stations & GPS receivers —methods that remain reliable, but often limited by ground-level perspective and slower data capture. As projects become more complex and demand higher efficiency, the industry has had to adapt. The introduction of UAVs (Unmanned Aerial Vehicles), or drones, into the surveying world has revolutionised how we gather geospatial information. Drones can now capture vast amounts of data in a fraction of the time and from angles that were once impossible without expensive aircraft or lengthy fieldwork. How Drones Have Transformed Land Surveying Drones have fundamentally changed the way surveyors approach a site. By flying over a location and capturing aerial imagery and LiDAR or photogrammetric data, drones can generate: 3D terrain models Orthophotos (accurate overhead images) Digital Elevation Models (DEMs) Volumetric measurements Progress tracking and site condition reports This aerial perspective reduces time spent on-site, improves safety (especially in hazardous or hard-to-reach areas), and creates highly accurate, real-time visualisations that can be shared across project teams. Key Benefits of Drone Surveying for Your Project Speed and Efficiency Drone surveys can cover large areas in minutes—what might take a full day using traditional methods can often be done in few hours or less. High Accuracy With the right equipment and processing software, drones deliver precise spatial data that meets or exceeds the standards required for planning and construction. Cost Savings Faster data collection means reduced labour costs, fewer site visits, and quicker decision-making—all contributing to reduced overall project costs. Improved Safety Surveying steep slopes, construction zones, or unstable ground can be dangerous. Drones allow surveyors to capture necessary data without setting foot in risky areas. Better Collaboration 3D models and aerial imagery provide clear visuals that help stakeholders—from architects to contractors, understand the site instantly and make faster decisions. Versatility Drone surveys are useful at every stage of a project, from pre-planning and environmental assessments to construction monitoring and final inspections. Who Can Carry Out a Drone Survey? In the UK, drone surveys must be conducted by qualified professionals with the proper certifications. At a minimum, drone operators should hold: A General Visual Line of Sight Certificate (GVC) or equivalent An Operational Authorisation from the Civil Aviation Authority (CAA) Appropriate insurance, including public liability and professional indemnity Experience in land surveying, mapping, or geospatial data analysis At SUMO Services, our drone surveys are carried out by fully licensed UAV pilots who also have a background in surveying, ensuring that the data captured is not only accurate but useful in real-world applications. What can be Included in a Drone Survey? A comprehensive drone survey typically can include: Aerial photography and video of the site Orthomosaic maps stitched from high-resolution images 3D digital terrain or surface models Contours and elevation data Volume calculations (e.g., stockpile measurements) Georeferenced data for integration with CAD or GIS systems Annotated site progress images (for ongoing construction or asset tracking) Deliverables can be tailored depending on your project needs, from simple site imagery to detailed 3D BIM-compatible outputs. Why Are Drone Surveys Needed? Drone surveys aren’t just a "nice to have", they’re often the smarter choice when time, accuracy, and budget matter. They're particularly valuable for: Large, open, or rural sites Sites with difficult access or safety risks Projects requiring regular progress tracking Environmental assessments and flood risk analysis Pre-construction planning and feasibility studies By choosing drone surveying, you're equipping your project with faster insights, better data, and a clear visual record, right from the start. Unlock Your Project's Potential with SUMO Services At SUMO Services, we combine traditional surveying expertise with cutting-edge drone technology to deliver actionable data that enhances every stage of your project. From planning applications and topographical mapping to site inspections and asset management, we help you get more value from your land. FAQs 1. Are drone surveys accurate enough for construction planning? Yes, when carried out by qualified professionals using high-resolution sensors and accurate georeferencing, drone surveys can meet or exceed the accuracy needed for planning, design, and construction. At SUMO Services, we ensure all drone data is processed to industry-standard tolerances. 2. Do drone surveys replace traditional land surveys? Not entirely. Drone surveys are a powerful complement to traditional methods, especially for large or hard-to-reach sites. They enhance topographic mapping, progress monitoring, and visual inspection, but boundary verification or underground utilities may still require ground-based equipment. 3. How long does a drone survey take? Most drone surveys can be completed in a matter of hours, depending on the size and complexity of the site. The full results, including processed data and visual outputs, are usually delivered within a few working days. 4. Is special permission needed to fly drones for surveying in the UK? Yes. Drone operators must be certified by the Civil Aviation Authority (CAA)  and operate under a General Visual Line of Sight Certificate (GVC) or equivalent. At SUMO Services, our drone pilots are fully licensed, insured, and operate legally in all survey environments. 5. What types of sites benefit most from drone surveys? Drone surveys are ideal for large open spaces, infrastructure corridors, construction zones, rural land, and areas that are unsafe or inefficient to access on foot. They're also beneficial for projects needing regular progress tracking or volumetric analysis. 6. What do I receive from a drone survey? Typical deliverables include orthomosaic imagery, 3D models, elevation data, contour lines, volume calculations, and high-resolution aerial photography. These outputs can be provided in formats compatible with CAD, GIS, and BIM systems. Arrange For A Land Survey With SUMO Services At SUMO Services, we provide many different surveys to match the specific requirements of different projects: large or small. We quote our surveys based on project-by-project basis as the complexity of the survey, the difficulty of the terrain and the depth of detail needed all factor into the time spent. We provide free quotations to give you a good starting point.  Simply get in touch with our survey team online or by calling us on 0845 456 1104. You can also request a survey here.

In the realm of construction and infrastructure development, understanding the location of underground utilities is paramount. Striking a hidden cable or pipe can lead to costly delays, safety hazards, and legal complications. To mitigate these risks, the British Standards Institution introduced PAS 128, a specification that standardises the process of underground utility detection. This guide delves into the intricacies of PAS 128 surveys, elucidating their significance, methodologies, and applications. What Does PAS 128 Stand For? PAS 128 stands for "Publicly Available Specification 128," a standard developed by the British Standards Institution (BSI) in collaboration with industry experts. It provides a structured approach to the detection, verification, and location of underground utilities, ensuring consistency and reliability in survey results.​ Understanding the PAS 128 Specification The PAS 128 specification outlines the requirements for conducting utility surveys, categorising them into four types (A to D) based on the methods employed and the confidence level in the results. It also introduces Quality Levels (QLs) to indicate the accuracy of the detected utilities. By adhering to this standard, surveyors can deliver consistent and dependable data, facilitating informed decision-making in construction projects.​ What Is a PAS 128 Survey? A PAS 128 survey is a systematic process of detecting and mapping underground utilities in accordance with the PAS 128 standard. It involves various techniques, including desktop research, site reconnaissance, geophysical detection, and physical verification, to identify the presence and position of buried services. The survey's comprehensiveness and accuracy depend on the chosen survey type and the methodologies applied.​ Why Is a PAS 128 Survey Needed? Conducting a PAS 128 survey is crucial for several reasons:​ Risk Mitigation:  By accurately locating underground utilities, the survey helps prevent accidental strikes during excavation, reducing the risk of injuries and service disruptions.​ Cost Efficiency:  Identifying utilities beforehand minimises unexpected delays and associated costs in construction projects.​ Regulatory Compliance:  Adhering to PAS 128 demonstrates a commitment to industry best practices and safety standards.​ Informed Planning:  Reliable utility data enables better design and planning decisions, enhancing project outcomes Why PAS 128 Surveys Matter in Utility Detection PAS 128 surveys provide a benchmark for quality and accuracy in utility detection. They offer a transparent framework that clients and contractors can rely on, ensuring that the data collected meets specific requirements. This standardisation fosters trust among stakeholders and promotes safer, more efficient construction practices Classification Levels and Survey Types in PAS 128 PAS 128 categorises surveys into four types Type D:  Desktop utility records search, involving the collection of existing utility data from records. Type C:  Site reconnaissance, where surveyors validate record data through visual inspection of physical features Type B:  Detection using geophysical methods like Ground Penetrating Radar (GPR) and Electromagnetic Locators (EML) to locate utilities. Type A:  Verification through physical exposure of utilities via excavation or inspection chambers.​ Each type offers varying levels of confidence and accuracy, with Type A providing the highest assurance.​ Exploring PAS 128 Survey Category Type B Type B surveys are pivotal in utility detection, employing non-invasive geophysical techniques to locate underground services. These surveys are further classified into Quality Levels B1 to B4, indicating the confidence in the detected utilities' position and depth. Type B surveys strike a balance between accuracy and practicality, making them a popular choice in many projects.​ PAS 128 Quality Levels Explained Quality Levels (QLs) in PAS 128 denote the reliability of the utility data:​ QL-D:  Based solely on desktop records, offering the lowest confidence level.​ QL-C:  Combines records with site reconnaissance, providing moderate confidence.​ QL-B4 to QL-B1:  Derived from geophysical detection, with QL-B1 indicating the highest confidence in both position and depth.​ QL-A:  Achieved through physical verification, offering the utmost accuracy.​ These levels guide stakeholders in assessing the reliability of the survey data for decision-making.​ Common Methods Used in PAS 128 Surveys PAS 128 surveys utilise a combination of techniques to detect underground utilities:​ Ground Penetrating Radar (GPR):  Emits radar pulses to identify subsurface anomalies.​ Electromagnetic Locators (EML):  Detects electromagnetic fields emitted by metallic utilities.​ Visual Inspection:  Involves examining surface features and utility markers.​ Vacuum Excavation:  Non-destructive method to expose utilities for verification.​ The choice of methods depends on the project's requirements and the desired Quality Level.​ The Role of Ground Penetrating Radar (GPR) in PAS 128 GPR plays a crucial role in Type B surveys, offering a non-invasive means to detect non-metallic and metallic utilities. It provides valuable data on the depth and position of subsurface features, enhancing the accuracy of the survey. However, GPR's effectiveness can be influenced by soil conditions and the presence of moisture.​ Tools and Technologies for Underground Utility Detection PAS 128 surveys leverage a suite of advanced tools to ensure precise detection and mapping of underground utilities. Among these, Ground Penetrating Radar (GPR) stands out for its ability to identify both metallic and non-metallic utilities without excavation. Electromagnetic locators (EML) are also commonly used, particularly effective for detecting conductive materials like metal pipes and cables. These technologies, when combined with experienced surveyors' expertise, provide a comprehensive view of the subsurface infrastructure.​ Key Applications of PAS 128 in Infrastructure Projects The implementation of PAS 128 surveys is crucial across various infrastructure projects. In urban development, they help avoid utility strikes during excavation, ensuring public safety and project continuity. For transportation projects, accurate utility mapping prevents costly delays and redesigns. Additionally, utility companies rely on these surveys for maintenance planning and to update their records, enhancing the reliability of their services.​ PAS 128 vs. Non-Standard Utility Surveys While non-standard utility surveys may offer initial cost savings, they often lack the comprehensive methodology and quality assurance of PAS 128 surveys. The absence of standardised procedures can lead to inconsistent data, increasing the risk of utility strikes and project delays. In contrast, PAS 128 surveys provide a clear framework, ensuring high-quality data that supports safe and efficient project execution.​ Implementing PAS 128 surveys requires careful planning and consideration. Factors such as site accessibility, ground conditions, and the presence of existing records can impact the survey's effectiveness. Additionally, selecting the appropriate survey type and quality level is crucial to meet the project's specific needs. Engaging experienced professionals who understand these nuances ensures the successful application of PAS 128 standards.​ Making PAS 128 Work for Your Project To maximise the benefits of PAS 128 surveys, it's essential to integrate them early in the project lifecycle. Early detection of underground utilities informs design decisions, reduces the likelihood of costly changes, and enhances overall project safety. Collaborating with qualified surveyors who can tailor the survey approach to your project's unique requirements will ensure accurate and actionable results.​ Navigating the Underground with Confidence Understanding and implementing PAS 128 surveys is vital for any project involving ground disturbance. These surveys provide a reliable framework for detecting and mapping underground utilities, mitigating risks, and ensuring project success. By embracing PAS 128 standards, stakeholders can navigate the complexities of subsurface infrastructure with greater confidence and precision.​ FAQs What is a PAS 128 survey and why is it important? A PAS 128 survey is a British standard for underground utility detection. It ensures consistent and reliable data collection using clearly defined methods and accuracy levels. This helps reduce risk, improve safety, and support better planning in construction and infrastructure projects.​ What are the different PAS 128 survey types? PAS 128 includes four main survey types: Type D (desktop search), Type C (site reconnaissance), Type B (geophysical detection), and Type A (verification by excavation). Each type offers increasing confidence in the accuracy and location of underground utilities.​ When should I use a PAS 128 survey? PAS 128 surveys are ideal before excavation, utility installations, infrastructure upgrades, or any project involving ground disturbance. They help prevent costly service strikes and ensure compliance with industry best practices.​ Who can carry out a PAS 128 survey? Qualified surveyors with expertise in underground utility detection and the right geophysical tools should carry out PAS 128 surveys. Many organisations work with accredited providers to ensure data accuracy and compliance with the standard.​ How accurate are PAS 128 surveys? Accuracy depends on the survey type and the detection method used. Type B surveys include quality levels (QL-B1 to QL-B4) that indicate confidence in the utility data. This allows project teams to make informed decisions based on reliability.​ What are the benefits of PAS 128 over non-standard surveys? PAS 128 offers a structured and auditable approach, with clearly defined standards and confidence levels. Unlike non-standard surveys, it provides consistency, minimises risk, and improves decision-making throughout the project lifecycle.​ Ready to Ensure the Safety and Success of Your Project? At SUMO Services, we specialise in delivering PAS 128-compliant surveys tailored to your project's unique needs. Our experienced team utilises advanced technologies to provide accurate and reliable underground utility mapping.​ Get in touch today to discuss your project or request a quote. Call us on 0800 086 2700 or head here to learn more.

In today’s rapidly evolving world of technology, the age-old practice of land surveying has seen significant advancements. Traditional land surveying methods have long been the gold standard, but drones have quickly become a game-changer in the industry. If you’re wondering which method is best for your project, understanding the pros and cons of each approach is essential. In this guide, we'll delve into the nuances of traditional land surveying and drone surveys, helping you make an informed decision. Traditional Land Surveying Definition and Techniques Used in Manual Land Surveying Traditional land surveying involves the use of specialised equipment and methodologies to measure and map the physical environment. Techniques such as triangulation, traverse, and levelling are commonly employed by land surveyors to establish property boundaries, create topographical maps, and ensure accurate data collection. Pros of Traditional Land Surveying High Accuracy in Specific Conditions One of the most significant advantages of traditional land surveying is its ability to deliver high accuracy, especially in specific conditions. When detailed measurements are required, traditional methods excel due to their precise data collection capabilities. Proven Reliability and Established Methodologies Traditional surveying has been refined over centuries, making it a reliable choice for projects requiring tried-and-tested methods. Surveyors use well-established procedures that have been honed over time, ensuring consistent results. Detailed Data Collection Capabilities Traditional land surveys allow for the collection of highly detailed data. Surveyors can meticulously map out features and provide a comprehensive view of the land, which is particularly beneficial for complex projects. Cons of Traditional Land Surveying Time-Consuming Process Despite its accuracy, traditional land surveying can be time-consuming. The need for manual data collection, often in challenging environments, can slow down the overall process, leading to longer project timelines. Accessibility Challenges in Difficult Terrains Surveyors often face difficulties accessing certain terrains, such as dense forests, steep slopes, or hazardous areas. These challenges can impede progress and result in incomplete or delayed surveys. Drone Surveys Definition and Techniques Used in Drone Surveys Drone surveys, also known as UAS (Unmanned Aerial System) surveys, involve the use of drones equipped with high-resolution cameras and GPS technology to capture aerial images of the land. These images are then processed to generate accurate maps, 3D models, and other critical data. Pros of Drone Surveys Speed and Efficiency in Data Collection One of the most significant advantages of drone surveys is their speed and efficiency. Drones can cover large areas quickly, reducing the time required for data collection compared to traditional methods. Ability to Survey Large and Difficult-to-Access Areas Drones can easily access and survey areas that are challenging for humans, such as rugged terrains, remote locations, or hazardous sites. This ability allows for comprehensive data collection without putting surveyors at risk. High-Resolution Imagery and Advanced Data Analytics Drones are equipped with advanced cameras that capture high-resolution images, providing detailed visual data. Combined with sophisticated software, these images can be processed into accurate maps, 3D models, and other useful outputs. Cons of Drone Surveys Regulatory Restrictions and Compliance Issues Drone surveys are subject to strict regulatory requirements. Operators must comply with laws governing drone usage, which can vary by location and may restrict where and how drones can be used. Weather Dependency Drones are highly dependent on weather conditions. Wind, rain, and poor visibility can all affect a drone's ability to capture accurate data, potentially leading to delays or the need for repeat surveys. Comparing Accuracy and Precision When it comes to accuracy, both traditional and drone surveys have their strengths. Traditional surveying is highly accurate for specific tasks, particularly in small or detailed areas. On the other hand, drone surveys provide precise data across large areas quickly, making them ideal for broader surveys. The accuracy of land surveying drone results has improved significantly in recent years, with many projects achieving similar levels of precision to traditional methods. Cost Considerations Cost is a critical factor when choosing between traditional land surveying and drone surveys. Traditional methods often require more labour, time, and equipment, leading to higher costs, particularly for large or complex projects. In contrast, drone surveys can be more cost-effective, especially for surveying extensive areas, as they reduce the need for on-the-ground personnel and equipment. Choosing the Right Method for Your Project The choice between traditional land surveying and drone surveys depends on various factors, including project size, terrain, budget, and specific requirements. For projects requiring detailed measurements in small areas, traditional surveying may be the better choice. However, if you need to survey large, difficult-to-access, or hazardous areas quickly, drone surveys offer significant advantages. Case Studies and Examples For instance, a recent infrastructure project utilised drone surveys to map out a large, mountainous area. The drones completed the survey in a fraction of the time it would have taken using traditional methods, providing high-resolution imagery that was crucial for the project's planning phase. Conversely, a small urban development project opted for traditional surveying to ensure precise boundary measurements, demonstrating the value of traditional methods in specific scenarios. FAQs What is the difference between drone survey and land survey? Traditional land surveys use manual techniques, while drone surveys utilise UAS and advanced technology for efficient data collection. What type of land survey is most accurate? Traditional surveying is often preferred for its high accuracy in specific, detailed areas, though drones can provide comparable accuracy over large expanses. What are the advantages of drone surveying over traditional surveying? Drone surveys offer speed, efficiency, the ability to cover large areas, and high-resolution imagery, making them ideal for broad, challenging terrains. What are the disadvantages of drone mapping? Drone mapping is subject to regulatory restrictions, potential technical malfunctions, and weather dependencies, which can impact survey quality. What are the advantages of a land use survey? Land use surveys provide valuable insights into how land is being utilised, helping in planning, development, and environmental management. Why choose land surveying? Land surveying ensures accurate mapping of land features, property boundaries, and topography, essential for any construction, development, or planning project. Wrapping It All Up: Which Surveying Method Wins? Both traditional land surveying and drone surveys have their unique advantages and limitations. Traditional methods offer proven reliability and detailed data, while drone surveys provide speed, efficiency, and the ability to cover large areas. The best approach depends on your project's specific needs, terrain, and budget. Understanding the pros and cons of each method will help you make an informed decision that ensures the success of your project. Take the Next Step: Get Expert Surveying Advice Today Need help deciding which surveying method is right for your project?  Our team operates country-wide so if you need a survey, simply request a quotation. We are also more than happy to answer any questions about our services. You can give us a call on 0845 456 1104.

When embarking on property projects, precision and thorough preparation are essential. A full measured building survey offers the detailed insights needed to plan, design, and execute projects effectively, ensuring every aspect of the property is accurately documented. But what are the specific benefits of this service, and why is it vital for architects, developers, and property owners alike? Let’s explore the reasons why investing in a full measured building survey is a smart decision. Understanding the Value of Building Surveys Building surveys provide essential information about a property, ranging from its condition to its layout and structural integrity. These surveys are vital for property owners, buyers, and developers to make informed decisions. A SUMO measured building survey, in particular, focuses on capturing precise dimensions, layouts, and spatial details. Unlike condition surveys, which assess the health of a building, or structural surveys, which evaluate integrity, measured surveys document the building’s exact physical characteristics. This data is invaluable for creating accurate floor plans, elevations, and models essential for renovation, construction, or legal purposes. What Is a Measured Building Survey? A measured building survey is a comprehensive assessment of a property’s physical dimensions and layout. Using advanced technology such as laser scanners and drones, this survey captures the building’s geometry in detail, documenting everything from room sizes to external elevations. The output often includes floor plans, cross-sections, and 3D models, depending on the project’s requirements. This data is used by architects, engineers, and contractors to ensure accuracy during design and construction phases. By investing in a measured building survey, property owners can eliminate guesswork and reduce the likelihood of costly errors. Types of Building Surveys and How They Differ Not all building surveys are the same, and it’s important to understand their differences: Condition Surveys : Focus on identifying issues such as damp, cracks, and structural defects. Structural Surveys : Provide in-depth analysis of a building’s framework and materials. Measured Building Surveys : Document a property’s exact dimensions, layouts, and spatial relationships, providing data essential for design and planning. While condition and structural surveys address the state of a building, measured surveys focus solely on accuracy in dimensions, making them critical for development and renovation projects. Key Benefits of Investing in a Full Measured Building Survey Accurate Data Collection One of the most significant advantages of a measured building survey is its precision. Advanced tools like laser scanners and drones ensure every detail is captured with exceptional accuracy. This eliminates the risk of measurement errors, providing reliable data for creating plans, elevations, and sections. Cost-Effective Planning Inaccurate measurements can lead to expensive mistakes during construction. A full measured building survey ensures that architects and contractors have precise information, reducing the risk of costly errors and delays. By investing in accurate data upfront, you can save both time and money over the course of the project. Informed Decision-Making Whether you’re buying a property, planning renovations, or applying for planning permission, a measured survey provides the clarity needed to make informed choices. Knowing the exact dimensions and layouts helps identify opportunities and constraints, enabling better project planning. Compliance and Risk Management A measured building survey helps ensure compliance with building regulations, reducing the risk of legal or financial penalties. Additionally, the survey identifies potential risks, allowing issues to be addressed proactively. How Is a Measured Building Survey Carried Out? The process begins with a site visit, where experienced surveyors use tools such as total stations, laser scanners, and drones to gather data. These devices capture the building’s internal and external features with remarkable precision. Once the fieldwork is complete, the data is processed using specialised software to create detailed drawings, plans, and models. The final deliverables are tailored to the client’s needs, whether that includes 2D plans, 3D models, or specific measured building survey specifications. This meticulous process ensures that every aspect of the building is documented accurately, providing a reliable foundation for any property project. How Much Does a Measured Building Survey Cost? The cost of a measured building survey varies depending on factors such as the size and complexity of the property, the level of detail required, and the location. For small residential properties, costs can start at considerably less than £1000.  Larger or more complex buildings, such as commercial spaces or heritage sites, typically require a higher investment. Additional services, such as 3D modelling or specialised outputs such as animations or walkthroughs, can also affect pricing. Despite the initial expense, the long-term value of avoiding costly errors and ensuring smooth project execution makes this investment worthwhile. Measured Building Survey Equipment and Techniques Modern technology underpins the accuracy of measured building surveys. Equipment such as 3D laser scanners, drones, and total stations allows surveyors to capture intricate details with incredible precision. These tools ensure that every aspect of the building is measured accurately, from internal layouts to external elevations. Specialised software then processes the collected data, transforming it into clear, detailed plans and models. This combination of cutting-edge technology and expertise guarantees reliable results for any project. The Role of Measured Building Surveys in Property Projects Measured building surveys play a pivotal role in property projects. They provide the foundation for accurate design, ensuring architects and engineers have the data they need. Additionally, these surveys support legal and financial processes, such as planning applications and valuations, by providing detailed documentation of the property. By investing in a measured building survey, property owners and developers can streamline communication between stakeholders, reduce project risks, and enhance overall efficiency. FAQs What is a building survey, and how is it different from a measured building survey? A building survey assesses a property’s condition, identifying defects and maintenance needs. A measured building survey (MBS) focuses on precise measurements and layouts, providing essential data for planning and design. What is a measured building survey, and why is it important? A measured building survey documents a property’s dimensions and features with precision. This ensures accurate planning and design, reducing errors during construction. How much does a measured building survey cost? Costs vary based on property size, complexity, and additional requirements, ranging from a few hundred to several thousand pounds. How is a full measured building survey carried out? Surveyors use tools like laser scanners and drones to capture data, which is then processed into detailed plans and models. What are the types of building surveys, and where does a measured building survey fit in? Building surveys include condition, structural, and measured surveys. Measured surveys focus exclusively on accurate dimensions and layouts. How do measured building surveys help with land, buildings, and utilities? They provide precise data for buildings, capture topographical information for land, and map utilities like pipes and cables, supporting comprehensive project planning. Invest in Precision with SUMO Services Today A full measured building survey is a cornerstone of successful property projects, providing the accuracy and reliability you need. At SUMO Services, our expert team uses the latest technology to deliver tailored solutions for your unique requirements. Contact us today to discuss your project and ensure your investment is built on a solid foundation of precision. Receive a quote today. You can contact us on 0845 456 1104 or you can reach out to our team online  here .

Geophysical surveying is a game-changer in modern construction projects, offering innovative, non-invasive techniques to explore subsurface conditions. From identifying soil stability to detecting hidden hazards, these methods are vital for creating safe and efficient construction processes. In this blog, we’ll uncover the importance of geophysical surveying, explore its methods, and see how it supports archaeology, the construction industry, sustainability, and project management. What Is Geophysical Surveying? Geophysical surveying uses non-invasive technologies to investigate subsurface conditions without disturbing the ground. By employing tools like gravitational sensors, ground-penetrating radar (GPR), and electrical resistivity meters, geophysicists gain critical insights to any anomalies below the surface.. This information is essential for construction teams, allowing them to make informed decisions about excavation and risk management. In modern construction, these surveys are particularly useful for addressing challenges like hidden voids, or underground utilities. Geophysical surveys also play a key role in archaeological projects, ensuring that historical artefacts and sites remain undisturbed. What Are the Main Geophysical Methods? Geophysical surveys employ a variety of methods to meet specific construction needs. These include: Microgravity Surveys : These measure the smallest changes in the Earths gravity, detecting sink holes and other subsurface features. Electrical Resistivity : This method sends electrical currents through the ground to map subsurface structures like groundwater or voids. Magnetometry : Used to detect metallic objects or archaeological features buried underground. Ground-Penetrating Radar (GPR) : Provides detailed imaging of subsurface features such as pipelines, voids, and structural anomalies. Each method has unique applications, making it vital to select the right one for your specific construction or archaeological needs. Microgravity Surveying Methods. Microgravity surveys measure very small variations in the Earth's gravitational field. These measurements are taken using highly sensitive instruments called gravimeters . The surveys are usually done on the ground or from aircraft, and they help detect differences in subsurface density. What they find: These tiny gravity changes can reveal a lot about what's beneath the surface, including: Voids or cavities  (e.g., tunnels, caves, or old mine workings) Buried structures  (archaeological features, foundations) Sinkholes  or areas of potential collapse Changes in rock types  or geologic formations Ore bodies  or mineral deposits Groundwater variations  or buried channels This information is particularly useful for large-scale infrastructure projects such as tunnels, bridges, and high-rise buildings, where understanding the earth’s subsurface is critical to safety and success. Electrical Surveying Methods Electrical surveying methods, such as resistivity tomography, involve injecting electrical currents into the ground to measure resistance levels. These measurements can reveal critical information about groundwater presence, voids, or unstable soil layers. For construction projects, this data ensures that foundations are built on stable ground, avoiding costly delays or structural risks. Electrical methods are also widely used in environmental and archaeological studies to minimise invasive excavation. Enhancing Efficiency in Modern Construction Geophysical surveying offers a range of benefits that directly impact the efficiency of construction projects. By providing detailed subsurface data upfront, teams can avoid unexpected challenges during excavation or foundation work. For instance, identifying underground utilities or voids early reduces the risk of costly disruptions. Moreover, geophysical surveys streamline the management of construction projects  by optimising resources and ensuring work progresses according to plan. This makes modern construction processes safer, faster, and more cost-effective. Geophysical Exploration Techniques Electrical Resistivity Tomography (ERT) ERT maps subsurface structures by measuring how electrical currents flow through the ground. It’s particularly useful for identifying water tables, underground voids, and stable bedrock, making it a go-to method for both environmental and construction projects. Data Acquisition, Processing, and Interpretation The success of any geophysical survey depends on accurate data acquisition and interpretation. During the fieldwork phase, geophysicists collect raw data using tools like GPR and resistivity meters. This data is then processed using advanced software to generate detailed subsurface maps. Interpreting these maps requires expertise, as geophysicists must identify patterns and anomalies that could affect construction. These findings are compiled into a geophysical survey report , which guides construction teams in making informed decisions. Ground-Penetrating Radar (GPR) GPR is one of the most versatile and widely used geophysical methods. By emitting radar waves into the ground, GPR can detect underground features such as pipelines, cavities, and archaeological remains. Its non-invasive nature makes it invaluable for both construction and heritage projects. In modern construction, GPR is often used to locate utilities before excavation begins, reducing the risk of accidental damage and ensuring compliance with regulations. Why Geophysical Surveys Are Essential Geophysical surveys offer unparalleled insights into subsurface conditions, making them essential for modern construction projects. They help teams: Detect hidden hazards such as voids. Minimise environmental impact by reducing unnecessary excavation. Optimise resources, saving time and costs. Preserve historical artefacts by identifying archaeological features. By reducing uncertainties, geophysical surveys ensure construction projects proceed smoothly, safely, and efficiently. The Groundwork for Modern Construction Success Geophysical surveying is more than just a technical process—it’s a vital step in creating safe, sustainable, and efficient construction projects. Whether it’s designing stable foundations, protecting cultural heritage, or managing risks, geophysical methods provide the insights needed for success. Key Takeaways Geophysical surveys are essential for understanding subsurface conditions in construction and archaeology. Methods like microgravity surveys, GPR, and electrical resistivity are invaluable for modern construction projects. Professional geophysical surveys reduce risks, save costs, and optimise project efficiency. FAQs What Is Geophysical Surveying in Construction? Geophysical surveying in construction uses non-invasive techniques to assess subsurface conditions, aiding excavation, foundation design, and risk management. What Are the Benefits of Geophysical Surveying in Modern Construction? Geophysical surveys enhance efficiency, reduce risks, optimise resources, and help preserve archaeological sites, ensuring projects are safe and compliant. What Is Geophysical Engineering? Geophysical engineering applies geophysical methods to investigate subsurface conditions, supporting construction and environmental projects. What Types of Geophysical Surveys Are Used in Construction? Common surveys include electrical resistivity, GPR, magnetometry, and gravimetric surveys, each tailored to specific construction needs. How Do Geophysical Surveys Benefit Archaeology? Geophysical surveys locate buried structures and artefacts without excavation, protecting cultural heritage during construction projects. How Are Geophysical Survey Results Documented in Construction? Survey results are presented in a detailed report, including maps, data analysis, and recommendations for excavation and foundation planning. Ready to Build on Solid Ground? Contact Sumo Services  today to learn how our geophysical surveying expertise can ensure your project’s success. From subsurface investigations to actionable reports, we’re here to support your modern construction needs. Receive a quote today. You can contact us on 0845 456 1104 or you can reach out to our team Online here .

In recent years, 3D laser scanning modelling has emerged as a game-changer in the construction and surveying industries. This advanced technology offers a wealth of benefits, from increased accuracy and time efficiency to cost savings and enhanced visualisation. In this blog, we'll delve into how 3D laser scanning works, the advantages it brings, and how it is revolutionising project planning, quality control, and renovation efforts. Understanding 3D Laser Scanning Modelling 3D laser scanning modelling is a surveying technique that captures detailed spatial data using laser beams. The scanner emits a laser that bounces off surfaces, measuring the distance between the scanner and various points in the environment.  Whether you're conducting a 3D laser scanning survey for a building, land, or a complex topography, this method allows you to create highly detailed representations of spaces for a wide range of applications. How Accurate is 3D Laser Scanning Modelling? One of the primary advantages of 3D laser scanning is its incredible accuracy. The technology offers millimetre-level precision, making it ideal for projects where exact measurements are critical. This accuracy helps reduce the margin for error, ensuring that models reflect the true dimensions and features of the scanned environment. With laser scanning surveying, intricate geometries, angles, and hard-to-reach areas can be captured with unmatched detail, improving project outcomes across various industries. Time Efficiency and Speed Traditional surveying methods can be time-consuming and labour-intensive, but 3D laser scanning services drastically speed up the data collection process. A laser scan survey can cover vast areas or complex sites in a fraction of the time it takes for manual measurements. This speed enables quicker decision-making and real-time updates, which helps keep projects on schedule and reduces the risk of delays. By integrating 3D laser scan surveys, project managers can focus on other essential tasks, confident that accurate data will be collected promptly. Cost Savings in Projects Implementing 3D laser scanning can result in significant cost savings over the lifespan of a project. For one, the technology minimises the need for repeated site visits, as one scan can capture all the necessary data. Additionally, the accuracy of laser scan surveys reduces costly rework caused by errors in measurements or miscommunication between teams. The precision and detail also allow for better planning and resource allocation, ensuring that projects stay within budget and avoid unnecessary expenses. Enhanced Visualisation and Detail The level of detail captured by laser scanning 3D modelling is a major asset, particularly in complex projects. The data collected can be visualised in high-resolution 3D models, allowing stakeholders to explore every aspect of a site or structure. These models can be rotated, zoomed in on, and manipulated to provide a complete understanding of the space. This enhanced visualisation is invaluable for architects, engineers, and project managers when making critical decisions and presenting ideas to clients. What Are the Benefits of Non-Invasive 3D Laser Scanning? Another significant advantage of 3D laser scanning is that it is non-invasive. This means that the scanning process can be conducted without disrupting the site or structure being surveyed. This is particularly important for heritage buildings, sensitive environments, or active construction sites where minimal interference is crucial. Non-invasive 3D laser scanning allows for comprehensive data collection without causing damage or delays, making it an ideal solution for delicate or restricted areas. Where is 3D Laser Scanning Modelling Used? The applications of 3D laser scanning modelling are vast. This technology is widely used in construction, architecture, engineering, and surveying. It plays a key role in laser scanning building surveys, topographic surveys, civil engineering projects, and land development. Beyond these industries, 3D laser scanning is also used in heritage preservation, industrial design, and even in film and animation for creating highly detailed models of real-world environments. Supporting Design and Planning By providing accurate 3D models, 3D laser scanning supports better design and planning processes. Architects and engineers can visualise spaces before construction begins, allowing for informed decisions and more effective collaboration with other teams. The detailed models help identify potential design challenges early, reducing the likelihood of errors during the build phase. Improving Quality Control Quality control is essential in any construction or surveying project, and laser scanning services provide a robust tool for ensuring high standards. By comparing the 3D model against design specifications, discrepancies can be identified early, preventing costly mistakes. Additionally, regular scanning throughout the project timeline ensures that quality is maintained, and any issues can be quickly addressed. Facilitating Renovation and Restoration Renovation and restoration projects often face unique challenges, particularly when dealing with older buildings or incomplete documentation. 3D laser scanning for building surveys provides a reliable and accurate way to capture existing conditions, even in buildings with complex structures or limited accessibility. This precise data ensures that renovation plans are based on current, accurate information, minimising the risk of unforeseen issues and streamlining the restoration process. Integration with BIM and Other Technologies One of the key strengths of 3D laser scanning is its compatibility with Building Information Modelling (BIM) and other advanced technologies. Laser scan to 3D model data can be easily integrated into BIM platforms, creating a digital twin that enhances collaboration, reduces rework, and improves project efficiency. This seamless integration ensures that all stakeholders have access to accurate, up-to-date information, making it easier to coordinate efforts and achieve project goals. What Are the Environmental and Safety Benefits of 3D Laser Scanning? 3D laser scanning offers environmental and safety benefits that traditional methods simply cannot match. Since the technology allows for detailed data collection from a distance, it reduces the need for personnel to access potentially hazardous areas. This increases safety for workers while also minimising environmental disruption. Additionally, by reducing rework and resource wastage, laser scanning services contribute to more sustainable project practices, ensuring a lower carbon footprint and less material waste. Challenges and Considerations While 3D laser scanning offers many advantages, it’s important to be aware of potential challenges. The initial investment in 3D laser scanning survey equipment can be higher than traditional methods, and specialised expertise is often required to operate the technology and interpret the data. However, the long-term savings and benefits in accuracy, speed, and detail make it a worthwhile investment for most projects. Success Stories in 3D Laser Scanning Modelling Many successful projects have demonstrated the value of 3D laser scanning modelling. For example, construction firms have used laser scanning to monitor the progress of large-scale builds, ensuring everything stays on track. In restoration projects, heritage buildings have been accurately documented and preserved, while engineers have relied on 3D laser scanning land surveying to design and construct infrastructure in challenging environments. These success stories highlight the technology's versatility and reliability. Choosing the Right 3D Laser Scanning Service To fully benefit from 3D laser scanning, it’s essential to choose the right service provider. Look for companies with experience in your industry, equipped with the latest laser scanning 3D modelling technology, and a strong reputation for delivering precise, reliable data. The right provider will guide you through the process, ensuring that you get the best results for your project. Experience the Power of 3D Laser Scanning for Your Projects The future of construction and surveying is here, and it’s powered by 3D laser scanning. With its ability to enhance accuracy, speed up timelines, reduce costs, and improve visualisation, this technology is a must-have for any forward-thinking developer or engineer. Don’t miss out on the benefits—consider incorporating 3D laser scanning into your next project. FAQs What are the 5 key benefits of using laser scanning? Laser scanning offers exceptional accuracy, time efficiency, cost savings, improved safety, and enhanced visualisation. What are the benefits of 3D scanning? 3D scanning provides detailed, millimetre-level data that helps reduce human error, speeds up project timelines, and supports better decision-making. What are the pros and cons of 3D laser scanning? The main pros are high accuracy, speed, and reduced labour costs. The cons include the initial investment in equipment and the need for specialised expertise to operate and interpret the data. What are the benefits of 3D LiDAR? 3D LiDAR technology offers precise, non-contact data collection, ideal for mapping large areas, monitoring environments, and enhancing project accuracy. What is 3D laser scanning modelling? 3D laser scanning modelling is a process that captures detailed spatial data using lasers, converting it into accurate 3D models for various applications. How accurate is 3D laser scanning modelling? 3D laser scanning provides millimetre-level precision, ensuring highly accurate models that capture complex geometries and reduce human error. How does 3D laser scanning save time in projects? The technology allows for faster data collection and model creation, streamlining project timelines and enabling real-time updates. How does 3D laser scanning reduce costs in projects? It minimises rework, reduces the need for site visits, improves resource allocation, and offers long-term financial benefits through accurate planning. Where is 3D laser scanning modelling commonly used? It’s widely used in construction, architecture, engineering, heritage preservation, industrial design, and even in film and animation for creating detailed models. Can 3D laser scanning be integrated with other technologies like BIM? Bring Your Projects to Life with Precision 3D Laser Scanning Unlock the full potential of your construction, surveying, or restoration projects with the power of 3D laser scanning modelling. Let us help you take your project to the next level with cutting-edge technology and expert service! To find out more and receive a quote, you can contact us on 0845 456 1104 or you can reach out to our team online  here .