Waterproofing Cost Calculator!
Final Quote depends on Exact site inspection, accessibility , rebates and chosen system. Some homes qualify for rebates up to $2000
As a pre-qualified contractor in Hamilton’s Protective Plumbing Program, Waterproofing4Less helps you secure up to $2,000 in rebates for sump pump and backwater valve installations. We handle the paperwork—so you don’t have to.
We’re Hamilton’s budget-friendly waterproofing experts. No hidden fees, no surprise add-ons—just honest pricing and reliable protection for your basement.
Imagine this: Carl Mcdowell, our founder, grew up on Hamilton Mountain and watched his own family’s basement flood after a sudden spring thaw. From Dundas to Stoney Creek, heavy rains and clay soils strain aging foundations. You don’t have to live through that. We customize solutions—interior or exterior—to keep your home dry, healthy, and mold-free.
Learn More: Interior Waterproofing in Hamilton
Learn More: Exterior Waterproofing in Hamilton
Use our on-page calculator for a custom estimate—rebates applied automatically.
To know more about Rebates, kindly visit our Rebates page.
We protect homes across Hamilton—including Ancaster, Dundas, Waterdown, and Central Hamilton—with fast response times and weekend inspections.
Great news: you don’t need to navigate city hall alone.
We file every application, book inspections, and track your rebate so you can relax.
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When the Smith family’s sump pump failed during a torrential downpour, their basement quickly filled. We installed 40 ft of interior drainage, a battery-backed sump pump, and a backwater valve.
“Waterproofing4Less took care of everything—permits, inspection, rebate paperwork—so I didn’t lift a finger,” says Mrs. Smith.
You deserve a dry, safe basement—without the hassle.
Call 416-333-2212 or
Pricing ranges from $75–$400 per linear foot, depending on the method and site conditions.
Up to $2,000 for sump pumps and backwater valves under the Protective Plumbing Program.
Single-family or duplex homeowners with taxes paid up-to-date and homes built before 2012.
Yes—for valves and major excavation. We file for you and manage inspections.
Absolutely—Hamilton offers low-interest loans up to $2,000 for your share of costs.
Often, yes. But exterior systems offer the best long-term defense against groundwater.
Typically 6–8 weeks after final inspection and document submission.
Yes—we provide emergency repairs and priority scheduling for flood events.
Replacement and upgrade systems still qualify for rebates and loans.
Definitely—professional waterproofing boosts resale appeal and lowers future risk.
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Daniel Brooks
Incredible customer service, very helpful explaining the project and what is involved. Super responsive, even after the project was over with a few follow up questions. Would call them immediately if I ever needed more water proofing services!
Olivia Monroe
Carl and his team did a fantastic job, waterproofing a small section of our foundation, installing a proper drain in a window well and putting everything back together, looking snazzy.
Michael Landry
Waterproofing4Less are excellent in their trade. I would highly recommend them if you need waterproofing.
Rachel Bennett
Super professional, fast, clean, and they know exactly what they’re doing. Extremely seamless service!! Thankful to this team
Daniel Brooks
Valentine of Waterproofing4Less provided excellent service and good value for a faucet replacement and a further faucet repair.
Emily Carson
Carl and the crew at Waterproofing4Less are the best option in southern Ontario. Carl is honest and professional while delivering a high quality of work on schedule.
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