Building-Envelope Leak Detection in BC
Not every leak comes from a pipe. Water that enters through walls, windows, roofs and balconies — driven by BC's wind-driven coastal rain — is a defining provincial building problem, and a detection specialty all its own.
Leaks.ca is the educational leak detection hub and service-support division of Leak.ca, helping BC property owners understand leak risks and connect with professional detection services when needed.
Building-envelope leak detection diagnoses water entering through the exterior shell of a building rather than from internal plumbing. Because water entering high in a wall can travel far before it surfaces, a systematic assessment using thermal imaging, moisture mapping and drone surveys is needed to find where it actually enters — the legacy of BC's leaky-condo era and a year-round concern on the wet coast.
Detection Methods
Diagnosing where water enters through walls, windows, roofs and balconies.
Revealing the cool, damp footprint of water in wall assemblies.
Defining how far water has spread inside the assembly.
Surveying roofs and large façades safely from above.
Why It Matters
Envelope failure rots structure from the inside, often unseen for years
Water surfaces far from where it enters, so systematic assessment is essential
BC's wind-driven coastal rain makes envelope performance a year-round issue
Property Types We Cover
Related Services
Building Envelope Leak Detection by BC City
Building-Envelope Leak Detection guidance grounded in each community's real building stock, climate and ground conditions.
Metro Vancouver
Fraser Valley
Vancouver Island
Sea-to-Sky
Sunshine Coast
Okanagan
Thompson–Nicola
Kootenays
Northern BC
Building Envelope Leak Detection FAQ
An envelope leak is water entering from outside through the building's shell — walls, windows, roof or balconies — driven by rain, rather than water escaping internal plumbing. Detection focuses on the exterior assembly and where water penetrates it, using thermal imaging and moisture mapping.
British Columbia's coast experiences heavy, sustained, wind-driven rain, and a large stock of 1980s–90s wood-frame buildings was built with envelope details that proved vulnerable — the 'leaky condo' legacy. Envelope assessment remains a core need across the province.
Need building envelope leak detection?
Hidden leaks rarely reveal themselves until the damage is done. If you suspect a leak, a certified technician can locate it non-invasively and document it for insurance. Leaks.ca is the educational division — for booking and on-site detection across British Columbia, our service partner Leak.ca handles professional assessments.
Educational hub & service-support division of Leak.ca · Serving all of British Columbia · Since 1999