Basement Waterproofing Cost in Calgary (2026)
Average cost in Calgary
$3,000 — $40,000
$70 — $300 per sq ft
Cost Breakdown
ItemizedExcavation and installation
50%
Membranes, weeping tiles, and sealants
30%
Machinery rental and soil removal
10%
Backfilling and surface repair
7%
City of Calgary building permits
3%
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
$16,316
Today
$17,050
Basement Waterproofing in Calgary is ↑ 4.5% compared to roughly a year ago — about $734 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 providersBasement Builders
18 Silverado Ranch Way SW, Calgary, AB T2X 0M6, Canada
285 reviews
The 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
136 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 in Calgary averages $70 to $230 per linear foot, while exterior waterproofing ranges from $100 to $300 per linear foot due to excavation requirements.
A standard sump pump installation typically costs between $1,200 and $2,500. However, comprehensive systems including backup power and basin installation can range up to $15,000 in complex Calgary residential projects.
Yes, exterior methods typically cost between $20,000 and $40,000 because they require full excavation to the footings. Interior solutions are more affordable, generally ranging from $8,000 to $15,000 for a standard 1,000 sq ft basement.
Basic waterproofing often excludes structural repairs. In Calgary, epoxy or polyurethane crack injections cost between $250 and $1,500 per crack, while major structural stabilization can exceed $25,000.
📊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: 4 days 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.