Crawlspace Encapsulation
in Fort Langley, BC
Fort Langley is a designated heritage community on the south bank of the Fraser River, known for the Hudson's Bay Company fort and the historic village that grew up around it. The residential streets near the historic core contain some of the oldest surviving homes in the Fraser Valley, with some properties dating back to the late 19th century. These homes are of significant heritage value, and any crawlspace work in this community must be approached with an understanding of the historic building methods and materials involved.
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 Fort Langley?
- Experience with Fort Langley'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 Fort Langley
About Fort Langley — What We See Here
The Fraser River proximity gives Fort Langley a high seasonal water table in the lower-lying areas near the waterfront, while the residential streets on the higher ground above the village are somewhat better drained. Heritage homes near the river have often had repeated moisture issues over their long lives, and the crawlspaces in some of these properties have layers of remediation attempts by previous owners. We bring a careful, systematic approach to understanding what is actually present before designing any new intervention.