Basement Waterproofing Cost in Hamilton (2026)
Average cost in Hamilton
$2,500 — $35,000
$50 — $350 per sq ft
Cost Breakdown
ItemizedExcavation and installation
50%
Membranes, weeping tiles, and gravel
30%
Sump pumps and backwater valves
12%
Municipal fees and waste removal
8%
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
$11,301
Today
$11,833
Basement Waterproofing in Hamilton is ↑ 4.7% compared to roughly a year ago — about $531 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 providersAquamaster Basement Waterproofing Hamilton
13 Delena Ave S, Hamilton, ON L8H 1B7, Canada
144 reviews
Aquatech Basement Waterproofing
180 James St S Suite 204, Hamilton, ON L8P 4V1, Canada
113 reviews
Royal Work Waterproofing
7 Village Dr, Hamilton, ON L8E 3M7, Canada
140 reviews
Direct Waterproofing Hamilton
21 King St W 5th Floor, Hamilton, ON L8P 4W7, Canada
98 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, the City of Hamilton's Protective Plumbing Program (PPP) offers subsidies in 2026 of up to $2,000 for backwater valve installation and up to $2,000 for sump pump systems, covering roughly 75% of eligible costs.
Hamilton's soil is primarily composed of heavy clay and Queenston Shale, which retain moisture and increase hydrostatic pressure. This often necessitates more robust exterior membranes and drainage systems, typically costing between $100 and $350 per linear foot.
Interior waterproofing is more budget-friendly, ranging from $50 to $150 per linear foot ($4,000–$10,000 total), while exterior waterproofing involves excavation and costs between $100 and $350 per linear foot ($15,000–$30,000 for a full perimeter).
Emergency repairs during the peak wet seasons of June and September, or during the spring thaw, can see a 10-15% premium due to high demand. Scheduling during the winter or late summer can often secure more competitive labor rates.
📊Our Methodology
How we collect dataAggregated from 9+ 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.