What is a Subsurface Survey?
Subsurface surveys aim to identify and verify the location and depth of buried services, features, materials, and voids. This provides you with the geospatial certainty needed to plan, design and construct with confidence.
Our subsurface survey services can be used for design and site verification to instil confidence in designers to avoid design clashes or interference with existing infrastructures. As a result, contractors can excavate the ground with a higher degree of confidence that they won’t strike or damage a buried service. Consequently, this reduces the costly and dangerous risk of utility strikes, as well as the impact to services, project delays, design changes, fines, and reputational damage.
Underground utility surveys
Underground utility surveys aim to identify and verify the location and depth of buried services, features, materials, and voids. Our surveys are PAS 128 compliant to provide clients with the geospatial certainty needed to plan, design and construct with confidence.
Ground Penetrating Radar (GPR)
GPR survey is a great option for a non-invasive subsurface survey for the detection of buried objects, utilities, and structures in the subsurface. GPR survey provides valuable information for archaeological studies, construction projects, and environmental assessments.
CCTV Surveys
CCTV surveys are types of subsurface surveys which provide detailed visual information about the condition of underground pipes, sewers, and utilities without the need for costly excavation or disruption.
Geophysical surveys
Geophysical surveys provide information about the subsurface geology, helping to identify potential hazards, locate natural resources, and plan construction projects.
Utility Desktop (C2) Search
PAS128 Type D Survey
Clear Insight. Informed Decisions.
Our Utility Desktop (C2) Search provides a structured, high-quality review of underground utility records, forming the foundation for safe design and utility mapping. Delivered in accordance with PAS128 Type D standards, we obtain, validate, and compile data from all relevant statutory undertakers into clear, accessible outputs.
Managing all enquiries and follow-ups on your behalf, we deliver verified utility information in PDF, CAD, or FastView formats. This provides early visibility of subsurface constraints, supports compliance with HSG47, and enables confident, informed decision-making from the outset.
What are the benefits of a subsurface survey?
- Reduction in the probability of a utility strike occurring during the course of a construction project, reducing risk and potential costs, programme delays and reputational damage
- Reduction in the need for exposing buried services prior to site excavation using slit trenches/trial pits or vacuum excavation/potholing procedures, saving time and money
- Identify important subsurface features such as underground utilities, buried foundations, and geological formations
- Reduce the risk of encountering unforeseen subsurface hazards or obstacles during construction or excavation
- Provide crucial information about the soil and rock properties, stability, and composition to help Engineers and Architects plan and design structures such as buildings, bridges, and roads, thereby ensuring their stability and safety, and longevity
- Regulatory compliance
- Safety of construction workers and the public
Topographical and Subsurface Surveys Brochure
What can a subsurface survey be used for?_
To identify potential hazards or obstacles underground, allowing for better planning and design of structures and ensuring the safety and longevity of infrastructure projects.
To provide important information about the underground conditions and potential hazards in a property, allowing developers and homeowners to make informed decisions about construction or renovations and ensuring the safety and stability of the property.
To generate records and valuations of assets, and plan for future developments.
To have a better understanding on the underground water sources, soil composition, and geological formations, aiding in environmental management, conservation efforts, and resource planning.
To keep records of buried assets and allow for maintenance and protection of your assets. Creation of digital twins to aid with maintenance programming.
To have essential information about the location and depth of underground infrastructure, helping to prevent damage, minimize disruptions, improve safety, and optimise maintenance and repair activities.
For information on the underground utility lines, geotechnical conditions, and potential hazards, enabling manufacturers to make informed decisions and minimize risks during construction and installation processes.