Identify subsurface voids before they collapse pavement or slabs.
Voids and sinkholes don't announce themselves until they fail. Pre-collapse, they're detectable by GPR as anomalous returns in soil density. We deliver void surveys for parking lots, slab-on-grade buildings, civic infrastructure and post-storm assessments. The work produces a referenced map of suspect locations and a recommendation for follow-up — typically targeted coring or geotechnical investigation. For municipal and government clients, this is often a preventive program rather than a reactive one.
GPR Service is a sub-division of Leak.ca, the Greater Vancouver leak detection company trusted since 1999. Every site visit is delivered by certified technicians using calibrated equipment, with documented findings formatted for insurance, engineering and procurement use.
We don't sell remediation. Our role is independent detection and assessment — the data you and your professional team work from.
GPR detects most accessible voids; very deep or water-filled voids may need complementary methods like seismic.
No — completely non-invasive.
Yes — atmospheric river follow-ups for municipalities and commercial owners.
Other services from GPR Service that often pair with Void & Sinkhole Detection.
Map water, gas, electrical and communication lines that public locates miss.
Pre-cut and pre-core scans for rebar, post-tension cables and conduit.
Confirm structural slab dimensions for engineering review.
Phone is fastest. Email is fine too. Both reach a real person.
