Basement Waterproofing Cost in Calgary (2026)
Average cost in Calgary
$3,000 — $25,000
$70 — $300 per sq ft
Cost Breakdown
ItemizedExcavation, installation, and backfilling
55%
Membranes, weeping tiles, and gravel
25%
Mini-excavators and specialized tools
10%
Pump unit and discharge plumbing
5%
City of Calgary permits and waste removal
5%
GST at 5%
📋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
$6,080 — $9,120
Based on 8 sources and market data for Calgary. Actual costs may vary depending on specific project requirements.
📈Price Momentum
Year-over-year~1 year ago
$12,598
Today
$13,165
Basement Waterproofing in Calgary is ↑ 4.5% compared to roughly a year ago — about $567 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 Calgary
Verified providersThe Poly B Plumbing Guys
10555 48 St SE #141, Calgary, AB T2C 2B7, Canada
89 reviews
Wizard Crack Repair Ltd
52 Woodbine Blvd SW, Calgary, AB T2W 4A8, Canada
138 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, interior waterproofing typically costs between $70 and $200 per linear foot, while exterior excavation and membrane installation ranges from $150 to $300 per linear foot due to the labor-intensive nature of digging.
The average cost for a professional sump pump installation in Calgary is approximately $2,780, with basic replacements starting at $800 and complex new basin installs reaching $4,000.
While Calgary does not offer a direct cash rebate as high as Toronto's $6,650, homeowners can access the Clean Energy Improvement Program (CEIP) for financing and may qualify for an $800 subsidy for backwater valve retrofits in homes built before 1989.
For isolated leaks, polyurethane or epoxy crack injections cost between $400 and $1,500 per crack, depending on the length and whether structural reinforcement is required.
📊Our Methodology
How we collect dataAggregated from 8+ 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.