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 equipment sends radar waves into the ground and analysing patterns in the return signal we can locate inert object 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.
Our service tracing teams use dye testing, 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.
Full CCTV surveys and condition reports of drainage systems.
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 done before we start tracing on site.