Void & Sinkhole Detection

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.

Who this service is for

• Commercial
• Government
• Residential

Why Pipe GPR for void & sinkhole detection

Pipe GPR 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.

Pairs well with

Clients booking void & sinkhole detection often combine it with Private Utility Locating or Concrete Scanning — particularly when the underlying issue spans multiple systems or when documentation needs to support a broader investigation.

How to prepare for your visit

1. Document what you're seeing. Photos, dates, sounds, water-bill changes, anything unusual. The more we know in advance, the faster we can locate.
2. Clear access to the suspected area. Move furniture, stored items, and rugs. Non-invasive methods still need clear sightlines.
3. Have system history ready. Recent plumbing work, prior leaks, renovations, age of property, prior insurance claims.
4. Confirm the email for your report. Photo-linked report delivered within 48 hours (often same-day for residential).