Basement Waterproofing Cost in Calgary (2026)
Average cost in Calgary
$2,000 — $42,000
$70 — $300 per sq ft
Cost Breakdown
ItemizedExcavation, backfill, and installation
55%
Membranes, weeping tiles, and sealants
30%
Heavy machinery rental and soil removal
8%
City of Calgary safety code fees
7%
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 12 sources and market data for Calgary. Actual costs may vary depending on specific project requirements.
📈Price Momentum
Year-over-year~1 year ago
$12,822
Today
$13,400
Basement Waterproofing in Calgary is ↑ 4.5% compared to roughly a year ago — about $577 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
294 reviews
The Poly B Plumbing Guys
10555 48 St SE #141, Calgary, AB T2C 2B7, Canada
91 reviews
Wizard Crack Repair Ltd
52 Woodbine Blvd SW, Calgary, AB T2W 4A8, Canada
143 reviews
Groundworks Foundation Repair Calgary
5555 80 Ave S E, Calgary, AB T2C 4S6, Canada
832 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 $3,000 and $10,000 ($70–$230 per linear ft), while full exterior excavation and membrane installation ranges from $15,000 to $42,000 ($100–$300 per linear ft).
While the City of Calgary offers a $10,000 grant for secondary suite developments that include safety upgrades, specific flood-prevention rebates for sump pumps and backwater valves are currently limited compared to other provinces, though rain barrel rebates of $50 are available in 2026.
A professional polyurethane or epoxy crack injection in Calgary typically costs between $250 and $800 per crack, depending on the length and whether structural stabilization is required.
A new sump pump installation, including the basin and discharge line, averages between $1,200 and $3,500 in 2026, with high-end submersible models and battery backups at the upper end of that range.
📊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: 3 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.