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Underground Services Tracing

Mapping of drainage and underground utilities

Location and mapping of 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

Using the latest detection equipment and by using public records, we can locate the underground services on a site and add them to a topographical survey or a measured building survey.

Electronic Detection

Our electronic detection equipment locates metal cables and pipes by tracing the signals they give off, or by listening for a signal we’ve induced into the service run. Inducing a signal into a service allows its depth to be accurately measured. Electric cables/ telecoms cables/ metal, gas and water pipes would usually be detected using this equipment.

Ground Penetrating Radar (GPR)

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

Drainage Surveys

Our 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 surveys and condition reports of drainage systems.

2D or 3D deliverable

Underground services surveys can be delivered as a 2D or 3D CAD overlay as part of a topographical survey, a measured building survey, or fully modelled in Revit as part of a BIM deliverable.

Statutory Utilities Search

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