Slab Leak Detection in Coquitlam, BC

Slab leaks are among the most challenging and potentially damaging plumbing failures in British Columbia buildings. In modern construction, particularly in multi-family residential buildings like Vancouver's ubiquitous wood-frame-over-concrete podium structures, hot and cold water lines are embedded directly in concrete foundation slabs. When these pipes fail — whether from copper pinhole corrosion, PEX fitting failures, or concrete settling that stresses joints — water can migrate beneath flooring, into adjacent units, or up through slab cracks for weeks or months before detection.

LeakInspection.ca specializes in slab leak detection using a combination of technologies tailored to the unique challenges of concrete-embedded plumbing. Acoustic detection is our primary tool for slab leaks, as pressurised water escaping from a pipe within concrete creates a distinctive sound that transmits through the slab. We use sensitive ground microphones and leak noise correlators with slab-specific frequency filters to isolate the leak signal from background building noise. When acoustic methods are inconclusive — such as with very small leaks or plastic pipes that dampen sound — we follow up with thermal imaging of the slab surface, which often reveals the heat signature of warm water migrating through the concrete.

Our slab leak detection process is designed to minimize destruction. Rather than cutting large exploratory trenches, we pinpoint the leak to within a 30-centimetre radius, allowing repair contractors to make a single small access hole. For buildings with radiant in-floor heating, we use additional precautions to locate the specific heating loop and avoid damaging adjacent loops during the repair. After detection, we provide a detailed report documenting the leak location, pipe material, likely cause, and recommended repair approach. This precision saves strata councils and homeowners thousands of dollars in unnecessary concrete cutting and restoration.