Basement Waterproofing Cost in Hamilton (2026)
Average cost in Hamilton
$5,000 — $25,000
$70 — $300 per sq ft
Cost Breakdown
ItemizedManual digging, shoring, and backfilling
45%
Membranes, sealants, and weeping tiles
30%
Excavators and soil removal
15%
City of Hamilton permits
5%
Landscaping and concrete 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
$6,528 — $9,792
Based on 7 sources and market data for Hamilton. Actual costs may vary depending on specific project requirements.
📈Price Momentum
Year-over-year~1 year ago
$14,085
Today
$15,000
Basement Waterproofing in Hamilton is ↑ 6.5% compared to roughly a year ago — about $915 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
111 reviews
Royal Work Waterproofing
7 Village Dr, Hamilton, ON L8E 3M7, Canada
133 reviews
Direct Waterproofing
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
In Hamilton, interior waterproofing typically costs between $70 and $200 per linear foot, while exterior waterproofing ranges from $140 to $300 per linear foot due to the heavy clay soil common in the area.
Yes, the City of Hamilton offers a Basement Flooding Preparedness grant of up to $2,000 for eligible works, including backwater valve installation, and additional subsidies through the Protective Plumbing Program.
The total cost usually ranges from $5,000 for basic interior systems up to $25,000+ for comprehensive exterior excavation, with the average homeowner spending around $15,000.
Exterior waterproofing requires extensive excavation, which is labor-intensive. Hamilton's dense clay soil holds water against foundations and is harder to dig, often pushing exterior costs to $140-$300 per linear foot.
📊Our Methodology
How we collect dataAggregated from 7+ 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.