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Underground Services Tracing

Mapping of drainage and underground utilities

Not knowing where all the pipes and cables run under your site can be dangerous and costly. Our tracing team use radio detection equipment and ground penetrating radar to scan your site for underground services. Our accurate surveys show all your services at their true position and depth so you dig with confidence.

  • Underground pipes, cables, ducts and drainage
  • Gas, Water, Electric, Heating Systems
  • Fibre Optics
  • Telecoms
  • Foul Water Sewers
  • Surface Water Drainage

All services located and mapped

Add your underground services to a Topographical Survey or a Measured Building Survey.

Electronic Detection

Our electronic detection equipment can locate metal cables and pipes by tracing the signals they give off, or by listening for a signal we’ve induced into the service run. This signal can measure the depth of the service run with a margin of 10% error. We can usually detect electric cables/ telecoms cables/ metal, gas and water pipes by using this equipment. Any object with a metal content can be traced if a signal can be induced into it.

Ground Penetrating Radar (GPR)

Ground Penetrating Radar equipment sends radar waves into the ground to analyse patterns in the return signal. We are then able to locate inert objects such as plastic or concrete pipes that cannot be found by detecting an electronic signal. GPR can also verify the depth and position of services located using other methods.

Drainage Surveys

Service tracing teams use electronic sondes and GPR to trace the route of foul and surface water systems across a site. Pipe sizes, incoming systems and invert levels are all recorded during the survey.

CCTV Surveys

Full CCTV survey with video and condition report of any size of drainage system.

2D or 3D Deliverable

Your underground services survey can be delivered in any of the following formats:

As a 2D or 3D CAD overlay as part of a topographical survey.
A measured building survey
A 3D Revit Model as part of a BIM deliverable.

The presence of any major services on a site and their approximate position can be confirmed by carrying out a desktop utilities search. We always recommend this is done before we start tracing on site.