Crawlspace Encapsulation
in Maillardville, BC
Maillardville is one of Coquitlam's oldest and most historically significant communities, established in the early 1900s as a French-Canadian settlement for workers at the Fraser Mills sawmill. The neighbourhood has some of the oldest residential construction in the Tri-Cities area, including homes from the early 20th century that represent BC's French-Canadian heritage. Crawlspaces in these historic properties have had a very long time to accumulate moisture-related conditions.
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 Maillardville?
- Experience with Maillardville'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 Maillardville
About Maillardville — What We See Here
Working in Maillardville's historic homes requires understanding the original construction methods of the era — balloon framing, old-growth lumber, original masonry foundations — and designing moisture management solutions that work with these existing conditions rather than requiring extensive modification. We approach these properties with the combination of technical knowledge and historical sensitivity that they deserve.