GPR Leak Detection in British Columbia
Ground-penetrating radar to locate underground pipes, voids, and concealed leaks without excavation across BC.
Professional GPR Leak Detection Across BC
In the context of leak detection, GPR serves two primary functions. First, it maps the precise location of buried pipes, conduits, and utilities before any excavation or coring begins — preventing costly and dangerous utility strikes. Second, it can detect areas of saturated soil surrounding a leaking pipe, as water changes the dielectric properties of the ground and creates a distinct radar signature. This makes GPR particularly valuable for locating leaks in underground water mains, irrigation lines, and sewer laterals where the surface gives no indication of the problem below.
GPR surveys are conducted by our trained operators who interpret the radargrams in real time, adjusting survey grids and antenna frequencies based on site conditions. We use a range of antenna frequencies from 200 MHz to 1.6 GHz, with lower frequencies penetrating deeper but offering less resolution, and higher frequencies providing detailed imaging at shallower depths. This flexibility allows us to adapt to diverse BC environments — from the sandy soils of Richmond and Delta to the glacial tills of the Fraser Valley and the bedrock of the North Shore. The resulting subsurface maps are integrated into our inspection reports, providing clients with clear, actionable data for repair planning.
How GPR Leak Detection Works
Site survey planning — grid setup based on site size and suspected utility locations
GPR data collection using appropriate antenna frequency for the target depth
Real-time radargram interpretation to identify pipe locations and saturation zones
Mark-out of buried utilities and leak areas on the surface with paint or flags
Frequently Asked Questions
How deep can GPR detect pipes and leaks?
Detection depth varies with antenna frequency and soil conditions. In typical BC soils, our 400 MHz antenna reaches approximately 2-3 metres depth, while our 200 MHz antenna can penetrate 4-5 metres but with lower resolution. Clay soils reduce effective depth compared to sandy or granular soils.
Can GPR detect leaks in plastic pipes?
GPR detects the disturbed soil and moisture saturation around a leak rather than the leak itself. While metal pipes produce strong reflections, plastic pipes are less visible. However, the saturated soil created by an active leak from any pipe type produces a detectable radar signature.
Is GPR safe to use around buildings and people?
Yes. GPR uses low-power radio waves similar to WiFi, not ionising radiation like X-ray. It is completely safe for use around people, pets, and sensitive equipment. No special safety precautions or site evacuation is needed during a GPR survey.
Do you need to scan the entire property?
Not necessarily. We work with you to identify the most likely leak zones based on visible symptoms, plumbing plans, and operational history. For underground leak detection, we typically scan a targeted grid pattern rather than the entire site, balancing thoroughness with efficiency.
Key Benefits
- Locates buried pipes before excavation to prevent utility strikes
- Detects saturated soil zones that indicate active underground leaks
- Non-invasive, non-destructive — no digging or coring required for initial survey
- Works across diverse soil conditions found throughout BC
- Provides depth information for buried utilities, not just horizontal position
- Can scan through concrete slabs to locate embedded pipes and post-tension cables
Service Areas
Available across British Columbia:
Schedule Your GPR Leak Detection Inspection Today
Contact LeakInspections.ca — a division of Anyleak.ca and Leak.ca — for professional, non-invasive gpr leak detection across British Columbia.