GPR Services · Vancouver Island
Pool Leak Detection in Duncan, BC
GPR traces the buried plumbing loops around your pool so pressure testing and acoustic work isolate the leaking line without tearing up the deck. Serving Duncan and the Vancouver Island region with certified technicians, non-invasive methods, and insurance-ready documentation — since 1999.
Free phone consult · No pressure · Mon–Sat 8am–6pm PT
Duncan ground conditions & what they mean for GPR
Local geology: Duncan sits on Cowichan Valley alluvium — sands and silts with seasonal saturation. Summer scans reach well into the alluvium; winter saturation shortens range. Farm and First Nations lands carry generations of undocumented lines.
Local building stock: Compact heritage downtown, surrounding farm parcels, and valley acreages with legacy water systems.
Common pool leak detection work in Duncan
- Farm waterline mapping
- Heritage-core utility identification
- Acreage leak tracing
- Concrete + vinyl + fibreglass pools
- Spas and swim-spas
- Strata amenity pools
How the Duncan site visit works
- 1
Evaporation test
Bucket test rules out normal evaporation (0.3–0.6 cm/day in BC summer) before any equipment is deployed.
- 2
Loop isolation
Each return, skimmer, and main-drain line is plugged and pressure-tested independently — the failing loop identifies itself.
- 3
GPR trace
The failing loop is traced under the deck with GPR, because pool plumbing rarely runs where anyone remembers.
- 4
Acoustic pinpoint
The leak is pinpointed along the traced line; one deck cut or one fitting repair instead of slab demolition.
Duncan questions, answered
Do you have to drain the pool?
Almost never. Loop isolation, GPR tracing, and acoustic confirmation all work with the pool full. Draining is reserved for rare structural shell investigations — and draining a pool in high-water-table areas of BC can itself damage the shell.
The deck is stamped concrete — will you cut it?
Only after the leak is pinpointed, and only a single small opening at the marked point. GPR tracing exists precisely to avoid the old practice of chasing pool lines with a saw.
Our strata pool loses chemicals fast but the level looks stable. Leak?
Possibly — auto-fill systems mask water loss while the chemical bill and heating cost climb. We isolate the auto-fill, run the loss test properly, and find what the top-up was hiding.
Can you check hot tubs and swim-spas too?
Yes. Most spa leaks turn out to be union fittings at the pump or heater rather than the shell — a 30-minute confirmation that saves replacing a tub.
How deep can GPR scan in Duncan?
Duncan sits on Cowichan Valley alluvium — sands and silts with seasonal saturation. Summer scans reach well into the alluvium; winter saturation shortens range. Farm and First Nations lands carry generations of undocumented lines. We select antenna frequency to match — and where local ground limits radar depth, we pair GPR with electromagnetic locating, acoustic methods, or tracer gas so the survey objective is met regardless of soil conditions.
Do you actually work in Duncan, or dispatch from elsewhere?
Duncan is part of our standing Vancouver Island service area — the same certified technicians and equipment that cover the rest of the region. Scheduling is typically within 24–72 hours, with same-day response often possible during business hours (Mon–Sat, 8am–6pm Pacific).
What does pool leak detection cost in Duncan?
Pricing matches our province-wide structure — no regional premium for Duncan. Most residential-scale work falls in the $350–$1,200 range depending on scope; commercial and multi-site projects are quoted after a free phone consult. Call 604-239-9934 and we will give you a tight estimate in five minutes.
Other GPR services in Duncan
Pipe Leak Detection in Duncan
Any pipe, any material — metal, PVC, PEX, asbestos-cement. GPR sees what EM locators can't, and pairs with acoustic and tracer gas for the confirmation.
View serviceUnderground Water Leak Detection in Duncan
GPR + acoustic correlation locates buried water service line and main leaks before any excavation — typically narrowing the dig to a 1-metre window.
View servicePipe Tracing & Mapping in Duncan
Lost drawings, renovated buildings, mystery valves — GPR rebuilds the as-built picture of where every line actually runs.
View serviceSlab Leak Detection in Duncan
GPR maps the in-slab plumbing and rebar so thermal and acoustic findings convert into a single small repair patch — not a jackhammered floor.
View servicePool Leak Detection near Duncan
Need pool leak detection in Duncan?
Free phone consult with a certified GPR technician — we will tell you whether a survey is warranted and quote it in five minutes. No pressure.