Basement Waterproofing Cost in Hamilton (2026)
Average cost in Hamilton
$3,500 — $30,000
$70 — $300 per sq ft
Cost Breakdown
ItemizedManual or machine digging and backfilling
55%
Rubberized membranes and sealants
20%
Weeping tiles, gravel, and filter fabric
15%
Bin rentals and soil removal
7%
City of Hamilton inspections and fees
3%
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
$6,528 — $9,792
Based on 9 sources and market data for Hamilton. Actual costs may vary depending on specific project requirements.
📈Price Momentum
Year-over-year~1 year ago
$12,742
Today
$13,315
Basement Waterproofing in Hamilton is ↑ 4.5% compared to roughly a year ago — about $573 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 Hamilton
Verified providersDirect Waterproofing Hamilton
21 King St W 5th Floor, Hamilton, ON L8P 4W7, Canada
117 reviews
Aquatech Basement Waterproofing Hamilton
180 James St S Ste 204, Hamilton, ON L8P 4V1, Canada
120 reviews
Aquamaster Basement Waterproofing Hamilton
13 Delena Ave S, Hamilton, ON L8H 1B7, Canada
150 reviews
Royal Work Waterproofing
7 Village Dr, Hamilton, ON L8E 3M7, Canada
142 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
Yes, through the Protective Plumbing Program (PPP), Hamilton homeowners can receive a subsidy of up to $2,000. This includes 75% of the cost for a sump pump (up to $1,500) and 75% for a backwater valve (up to $500).
Homes on the Hamilton 'Mountain' often deal with heavy clay soil which retains water and increases hydrostatic pressure, often requiring more robust exterior membranes. In the lower city, aging foundations (100+ years) may require additional structural reinforcement costing $500-$5,000 per linear foot.
Interior waterproofing typically costs $70 to $150 per linear foot ($3,500–$10,000 total) and manages water after it enters. Exterior waterproofing is more invasive, costing $150 to $300+ per linear foot ($15,000–$30,000 total), but stops water before it reaches the foundation.
For isolated leaks in Hamilton, professional polyurethane or epoxy crack injections typically cost between $800 and $1,300 per crack in 2026.
📊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.