Basement Waterproofing Cost in Kelowna (2026)

In 2026, the City of Kelowna charges a residential building permit fee of 1.14% of the total construction value, with a minimum fee of $100. For a typical $10,000 project, expect to pay approximately $114 plus a non-refundable application fee of around $150.

Yes, many areas in Kelowna have heavy clay soil which retains water and increases hydrostatic pressure. This often requires more robust exterior membranes and high-capacity weeping tile systems, which can increase project costs by 15-20% compared to sandy or loamy areas.

Interior waterproofing (drainage channels and sump pumps) typically ranges from $75 to $210 per linear foot. Exterior waterproofing, which requires full excavation around the foundation, is more expensive, ranging from $120 to $300 per linear foot due to high labor and equipment costs.

While the BC Building Code requires proper drainage, the City of Kelowna often mandates sump pumps in new builds or major renovations where the water table is high or gravity drainage is insufficient. A professional installation in 2026 typically costs between $1,200 and $3,500.