Crawlspace Encapsulation
in Silver Valley, BC
Silver Valley is one of Maple Ridge's newest residential communities, carved out of forested hillside on the slopes above the Alouette River valley. Development here has been ongoing since the 1990s and continues today, with the community still adding new streets and neighbourhoods on the upper mountain slopes. The terrain is steep, the soils are a mix of shallow glacial till and more organic forest soils, and rainfall is higher than the valley floor due to the orographic effect of the adjacent mountains.
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 Silver Valley?
- Experience with Silver Valley'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 Silver Valley
About Silver Valley — What We See Here
New development on steep, forested hillsides brings specific crawlspace challenges. Cut-and-fill grading on steep lots creates abrupt changes in soil profile that affect drainage in non-intuitive ways. Fill areas may settle over time, creating drainage depressions adjacent to foundations. The original forest soil, when exposed by grading, can produce significant moisture release into adjacent crawlspaces. We work with Silver Valley homeowners on both older and newer homes to identify and address these site-specific drainage conditions.