We conduct outstanding underground utility services surveys in Essex, London and nationwide for a broad range of clients and combine various methods to achieve the best possible results. Our ground penetrating radar and electromagnetic equipment uses the latest technology and is often combined for incredible accuracy.

Subvision’s professional team has been providing this essential service for clients across the nation and we have years of industry experience to call upon. We also offer underground utility mapping. We have been asked to work on a large number of major construction projects, including many London landmarks including The Shard, Wembley, Heathrow Terminal 2 and 02 Arena to name just a few.

Our surveyors combine electromagnetic detection and GPR to build an accurate picture of what’s buried across a site. Electromagnetic detection traces live cables and metallic pipes by following their signal, while GPR identifies non-metallic services, voids and other subsurface features that electromagnetic methods alone would miss. Using both together means we’re not relying on a single technique that could leave gaps in what’s actually detected.

An underground services survey is typically carried out at the early planning or feasibility stage of a project, before excavation, drilling or piling work is scheduled to begin. Carrying out the survey early allows the results to inform site layout and design decisions, rather than being discovered as an afterthought once construction is already underway. It’s also commonly requested as part of due diligence before purchasing or developing a site.

Subvision Surveys is SSIP and ISO accredited, with more than 3 decades of experience servicing commercial and residential clients. We’re Essex-based but work nationwide, using specialised techniques and cutting-edge equipment to deliver accurate results at competitive rates for Tier 1 contractors, developers, planners and private individuals alike.