Basement Waterproofing Cost in Ottawa (2026)
Average cost in Ottawa
$3,000 — $35,000
$70 — $350 per linear ft
Cost Breakdown
ItemizedTrenching, digging, and installation labor
45%
Membranes, sealants, and coatings
25%
Weeping tiles and sump pumps
20%
City of Ottawa building permits
5%
Backfill and landscaping repair
5%
HST at 13%
📋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
$6,400 — $9,600
Based on 6 sources and market data for Ottawa. Actual costs may vary depending on specific project requirements.
🏢Top Waterproofing Contractors in Ottawa
Verified providersBraden Foundation Construction
5300 Ramsayville Rd, Ottawa, ON K1G 3N4, Canada
102 reviews
Wet Basement Solutions
3591 Innes Rd #4, Orléans, ON K1C 1T1, Canada
106 reviews
Wet Basement Solutions - Dry Basements, For Life
915 Ramsay Concession Rd 1, Carleton Place, ON K7C 0C5, Canada
132 reviews
Action Restoration foundation repair
207 Bank St Suite 311, Ottawa, ON K2P 2N2, Canada
186 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 Ottawa, interior waterproofing typically costs between $3,000 and $12,000 ($70-$150 per linear foot), while exterior waterproofing is more comprehensive and ranges from $10,000 to $35,000 ($150-$350 per linear foot).
Yes, the City of Ottawa offers the 'Disconnect to Protect Rebate Program' which provides rebates such as up to $2,000 for foundation drain disconnection, 75% back (up to $675) on new sump pump installations, and up to $70 for disconnecting downspouts.
Foundation crack repairs in Ottawa generally cost between $300 and $800 per crack using epoxy or polyurethane injection methods, though larger structural repairs can cost up to $3,000.
A standard sump pump installation in Ottawa ranges from $565 to $3,500, depending on whether a new basin needs to be excavated and if a backup battery system is included.
📊Our Methodology
How we collect dataAggregated from 6+ 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.