Basement Waterproofing Cost in Kelowna (2026)
Average cost in Kelowna
$6,000 — $28,000
$120 — $400 per sq ft
Cost Breakdown
ItemizedSkilled waterproofing technicians and excavation crews
55%
Membranes, weeping tiles, sealants, and gravel
25%
Mini-excavator rentals and specialized machinery
10%
Backfilling, grading, and basic landscaping
5%
Municipal building permits and engineering reviews
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 12 sources and market data for Kelowna. Actual costs may vary depending on specific project requirements.
📈Price Momentum
Year-over-year~1 year ago
$11,013
Today
$11,949
Basement Waterproofing in Kelowna is ↑ 8.5% compared to roughly a year ago — about $936 more on the average project.
Comparison derived from the year-over-year change rate, not a month-by-month price index. We don't store historical snapshots yet — when we do, this will become a real time series.
🏢Top Waterproofing Contractors in Kelowna
Verified providersTotal Restoration Services Inc
707 Finns Rd, Kelowna, BC V1X 5B7, Canada
323 reviews
RBT Kelowna is now First Onsite Property Restoration
2323 Hunter Rd #5, Kelowna, BC V1X 7C5, Canada
118 reviews
WINMAR Property Restoration Specialists - Kelowna
1350 Industrial Rd, West Kelowna, BC V1Z 1G5, Canada
91 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
Unlike many Ontario municipalities, the City of Kelowna does not currently offer a specific 'Basement Flooding Protection' subsidy. However, homeowners can access 'Water Smart' rebates for landscaping and irrigation upgrades (up to $1,000) which can help with exterior water management and grading.
In 2026, exterior excavation and membrane waterproofing in Kelowna typically ranges from $150 to $400 per linear foot, depending on the depth of the foundation and ease of access for machinery.
A professional sump pump installation in Kelowna averages between $1,200 and $3,500 CAD. This includes the pump, basin, and discharge piping, with costs on the higher end for systems including battery backups.
Interior drainage systems (French drains) are more common for existing homes due to lower costs ($3,000–$10,000). However, for Kelowna's older foundations, exterior waterproofing is recommended to prevent structural decay, despite the higher $15,000+ price tag.
📊Our Methodology
How we collect dataAggregated from 5+ 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: 2 weeks ago. Updates run weekly. All costs in CAD.
About this data
Cost figures are estimates synthesized from public market data using AI research and refreshed regularly. Real project costs vary by scope, materials, contractor, and site conditions. Always get verified quotes from licensed contractors for your specific project.
Spotted bad data? Let us know — we'll review and update.