Drainage Solutions
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.

Drainage problems in crawlspaces have two distinct origins: water that arrives from outside (surface runoff, failed exterior drainage, high water table) and water that condenses from the air inside the crawlspace onto cooler surfaces. The solutions for each are different, and correctly diagnosing which problem you have — or which combination — is the critical first step. Applying interior drainage solutions to an exterior water problem provides partial relief at best; addressing the exterior source is far more effective and usually less disruptive.

Interior drainage systems — perimeter drain tile installed inside the crawlspace along the base of the stem wall — are the right solution when exterior work is impractical (due to finished landscaping, hardscaping, or very tight site conditions) or when the primary issue is groundwater rising from below rather than surface water entering through the wall. Interior drain tile channels water to a sump pit where a pump removes it. This approach does not stop water from entering the foundation, but it manages it effectively once it does.