Waterproofing contractor in Hamilton
Stop water at the source. Basement membranes and drainage, plus shower and wet-room waterproofing that outlasts the tile.
Get a free quote Call (437) 332-3023Waterproofing in Hamilton is priced by where the water is getting in, how much of the foundation must be exposed, and whether drainage or a sump is needed. Jopie diagnoses first, then fixes the cause, and can finish the space afterward under the same schedule.
Updated October 25, 2026Water problems don't fix themselves, and they rarely stay small. Jopie Construction Group handles basement and bathroom waterproofing across Hamilton, Halton, Peel and Niagara — proper membrane systems and drainage, not a bucket of sealant sprayed on a symptom.
What's included
Basement waterproofing
Interior and exterior approaches to keep Hamilton basements dry.
Foundation crack repair
Sealing and repairing cracks before they become active leaks.
Window well drainage
Fixing a common source of basement water intrusion in older Hamilton homes.
Bathroom & shower membrane waterproofing
Schluter-Kerdi and equivalent systems under every wet-area tile job.
Sump pump coordination
Making sure drainage has somewhere to go, not just somewhere to collect.
Exterior grading advice
Simple grading fixes that stop water from heading toward your foundation in the first place.
What determines the cost of basement waterproofing in Hamilton?
Waterproofing prices vary widely because the causes do. The main variables:
Source of water
Cracks, window wells, grading, failed weeping tile, high water table or plumbing leaks each need a different fix.
Interior or exterior
Interior drainage and membranes cost less than excavating around the foundation.
Excavation access
Tight lots, decks, driveways and landscaping affect exterior work.
Drainage and sump
New weeping tile, sump pit and pump, and discharge routing.
Foundation condition
Block versus poured, existing parging and crack movement.
Finishing afterward
Fixing water first lets you finish the space without redoing it.
How we work
Assessment
We find where water is actually getting in, not just where it's showing up.
Plan the fix
Membrane, drainage or grading — whatever actually solves the source, in writing.
Waterproof
Proper membrane and sealing systems installed and inspected.
Finish or hand off
Ready for finishing — we can carry straight into basement finishing if that's next.
From waterproofing to a finished basement
Once the basement is dry, the space is worth finishing. We can run waterproofing, framing, drywall and floors as one project: basement renovation.
Want a number for your project?
Send a few details and we reply within one business day with next steps and a walkthrough time.
Get a free quote or call (437) 332-3023Why Jopie
Waterproofing is invisible when it's done right, which is exactly why it's tempting to cut corners on. We don't — because the cost of doing it twice is always higher than doing it properly once.
Questions homeowners and owners ask
What determines the cost of basement waterproofing in Hamilton?
Six variables: source of water, interior or exterior approach, excavation access, drainage and sump, foundation condition and whether you finish afterward.
How do I know if my basement needs waterproofing?
Signs include damp walls or floors, white mineral deposits, musty smell, peeling paint, mould and water after heavy rain.
Can you waterproof and finish my basement in one project?
Yes. Our crew does both.
Do you waterproof bathrooms too?
Yes. Membrane systems behind tile in showers and wet rooms.
Should grading be checked before waterproofing?
Yes. Water that slopes toward the house is the cheapest problem to fix.
Based in Hamilton. Working close to home.
Our home base is Macnab Street in Hamilton, and our residential work is concentrated in Hamilton, Halton, Peel and Niagara, where our crew can be on site every day. Not sure we cover your address? Call or send the quote form and we will tell you. Commercial fit-outs and project management extend across the wider GTA: see GTA commercial work.
Related services
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