How do I fix drainage issues around my foundation in Surrey?

Foundation drainage issues in Surrey require immediate attention to prevent costly water damage and structural problems. Start by identifying whether you're dealing with surface water pooling, basement seepage, or foundation settlement, as each requires different solutions.

Surface drainage is often the first line of defense and the most cost-effective fix. Walk around your home during heavy rain to observe water flow patterns. The ground should slope away from your foundation at a minimum 6-inch drop over the first 10 feet. If water pools against your foundation walls, you'll need to regrade the soil or install surface drainage solutions like French drains or catch basins. In Surrey's clay-heavy soils, proper grading is especially critical since clay doesn't drain well naturally.

Downspout management is crucial in the Lower Mainland's wet climate. Your downspouts should discharge water at least 6 feet from the foundation, preferably into a proper drainage system rather than just onto the ground. Consider installing downspout extensions or underground drainage pipes that carry water to the street or a suitable discharge point. Many Surrey homes built in the 1970s-1990s have undersized or poorly positioned downspouts that can't handle our heavy winter rains.

For more serious issues like basement seepage or foundation cracks, you'll need professional intervention. Surrey's soil conditions - often clay with poor drainage - can create hydrostatic pressure against foundation walls. Signs include water stains, efflorescence (white chalky deposits), or actual water intrusion. These problems typically require exterior waterproofing, which involves excavating around the foundation, applying waterproof membrane, and installing proper drainage tile systems.

Metro Vancouver's building requirements under the BC Building Code mandate proper foundation drainage for new construction, but older homes may not meet current standards. Surrey's building department (604-591-4086) can provide guidance on permit requirements for major drainage work. Most surface grading and downspout work doesn't require permits, but excavation near foundations or connecting to municipal storm systems typically does.

Professional assessment is recommended if you notice foundation settling, cracks wider than 1/4 inch, or persistent water intrusion. A qualified foundation contractor can determine whether you need simple surface solutions ($2,000-$8,000) or comprehensive exterior waterproofing ($15,000-$40,000 per affected wall). WorkSafeBC requires proper excavation safety measures for any work deeper than 4 feet.

Start with the basics - check your gutters, extend downspouts, and improve surface grading.