Basement Waterproofing Cost in Kelowna (2026)
Average cost in Kelowna
$4,000 — $25,000
$70 — $300 per linear ft
Cost Breakdown
ItemizedExcavation and installation labor
45%
Membranes, weeping tile, sump pumps
35%
Backfill and surface repair
15%
Local Kelowna building permits
5%
GST+PST at 12%
📋What's Included
ScopeTypically Includes
- Interior drain tile system
- Sump pump installation
- Vapor barrier
- Crack injection sealing
- Labor
Typically Excludes
- Exterior excavation waterproofing
- Foundation repair
- Mold remediation
- Dehumidifier
- Landscaping restoration
Based on interior waterproofing for a standard 800-1,000 sq ft basement.
🧮Estimate Your Cost
InteractiveEstimated Cost
$6,720 — $10,080
Based on 7 sources and market data for Kelowna. Actual costs may vary depending on specific project requirements.
🏢Top Waterproofing Contractors in Kelowna
Verified providersTotal Restoration Services Inc
707 Finns Rd, Kelowna, BC V1X 5B7, Canada
318 reviews
Wise Cracks
3909 Trepanier Heights Ave, Peachland, BC V0H 1X2, Canada
44 reviews
RBT Kelowna is now First Onsite Property Restoration
2323 Hunter Rd #5, Kelowna, BC V1X 7C5, Canada
118 reviews
Provider data sourced from public business directories. Ratings and reviews are public and may change. LookupCost is not affiliated with listed providers.
💬What People Actually Paid
Community❓Common Questions
In 2026, the average cost for basement waterproofing in Kelowna ranges from $7,000 to $14,000, with BC prices trending 15-25% higher than the national average. Full exterior excavation for larger homes can exceed $20,000 to $25,000.
Interior waterproofing typically costs between $70 and $230 per linear foot. Exterior waterproofing, which requires heavy excavation, ranges from $100 to $300 per linear foot.
Yes, hidden costs such as landscaping restoration, permits, backfill, and mold remediation are often excluded from initial quotes and can add 20% to 40% to your final bill.
Exterior waterproofing is significantly more expensive, often costing $10,000 to $25,000+ due to the heavy excavation required. Interior drainage systems are more budget-friendly, usually costing between $4,000 and $10,000.
📊Our Methodology
How we collect dataAggregated from 7+ verified web sources and cost databases
Licensed contractor estimates and regional cost guides
Government construction and labor statistics
Community-reported project costs and reviews
Last data collection: today. Updates run weekly. All costs in CAD.