Crawlspace Encapsulation
in Burke Mountain, BC
Burke Mountain is one of the most recently developed residential areas in Coquitlam, with construction ongoing on the steep slopes of Burke Mountain above the existing Coquitlam community. Homes here are built on terrain that was forestland until recently, on soils that are a mix of shallow glacial till and organic forest soils. The steep topography creates significant drainage challenges, and the cut-and-fill grading required on these lots alters natural drainage patterns in ways that can produce unexpected water intrusion for individual properties.
Crawlspace encapsulation is one of the most effective investments a homeowner in Surrey or the broader Lower Mainland can make. The process involves covering the crawlspace floor and walls with a continuous, heavy-duty polyethylene vapor barrier — typically 12-mil or 20-mil reinforced poly — then sealing every seam, penetration, and vent opening with industrial-grade tape and adhesive. The result is a fully conditioned environment that is physically isolated from ground moisture and the damp Pacific Northwest soil beneath your home.
The installation process begins with a thorough cleanup — removing old fiberglass batt insulation (which absorbs moisture and harbors mold), clearing any debris, and treating visible mold colonies. Technicians then install the vapor barrier across the ground, lapping it up the walls and piers, and sealing it to the stem wall with adhesive and mechanical fasteners. All vents are closed and sealed from the inside. Depending on the space, we may also install a commercial-grade dehumidifier calibrated to maintain relative humidity around 50 to 55 percent throughout the year.
Why Choose Us in Burke Mountain?
- Experience with Burke Mountain's specific soil and drainage conditions
- Custom-designed systems — not one-size-fits-all packages
- Fully licensed, insured, and WCB-covered technicians
- Written report with photos after every inspection
- Workmanship guarantee on all completed work
Request Service in Burke Mountain
About Burke Mountain — What We See Here
Because Burke Mountain development is recent, the crawlspace issues we address here are different from the decades-old moisture damage we encounter in older communities. The challenges are more often about site drainage design — fill areas that have not drained as intended, grading that channels runoff toward foundations, and drainage systems that were adequate under normal conditions but overwhelmed during the heavy storms that are increasingly common in this region. Proactive assessment and drainage correction are the right approach for Burke Mountain homeowners.