Crawlspace Encapsulation
in Clearbrook, BC

Clearbrook is one of the older residential communities in Abbotsford, developed as a distinct Mennonite farming settlement before being absorbed into the modern city. The residential areas of Clearbrook have housing stock from the 1950s through the 1970s on relatively flat terrain with heavy clay soils — conditions very similar to the older Fraser Valley communities we serve throughout the Lower Mainland. Crawlspace moisture and mold issues are common in this housing stock, which was built to the standards of its era.

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.