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Injection repair for poured basement walls from the Mountain to Waterdown — and a straight answer about the century homes downtown where injection is the wrong tool.
Coverage: Hamilton proper, the Mountain, Ancaster, Dundas, Stoney Creek, Waterdown and Binbrook — crews dispatched down the QEW from our North York base. Free assessment first, one-visit repair for most poured walls.
Foundation crack repair in Hamilton costs $750–$1,000 for polyurethane injection of a leaking crack and $850–$1,500 for structural epoxy — full-depth through metal ports, with a transferable lifetime warranty. One Hamilton-specific caveat before anyone quotes you: injection is a poured-concrete method. It’s right for most Mountain, suburban and post-war homes — and usually wrong for the stone and rubble foundations under the lower city’s century houses, which we’ll tell you plainly at the free assessment.
The escarpment doesn’t just divide the city’s geography — it divides its basements.
| Area | Typical foundation | What that means for repair |
|---|---|---|
| Lower city — Kirkendall, Strathcona, Gibson, Crown Point and the other pre-war wards | Stone, rubble, brick, early unreinforced concrete | Injection usually is not the method — these walls need repointing, parging or drainage solutions, and we say so instead of selling the wrong fix |
| East Hamilton · the Mountain | 1950s–80s poured concrete | Classic aging shrinkage cracks as damp-proofing wears out — prime injection territory |
| Ancaster · Dundas · Stoney Creek | Mixed eras, mostly poured from the 1960s on | Poured walls inject normally; the older village cores get assessed wall by wall |
| Waterdown · Binbrook · newer surveys | 2000s+ tall poured walls | New-build shrinkage cracks — the youngest may still be the builder’s Tarion problem, not yours |
Patterns by area and era — the call that counts happens at your wall, free.
The Protective Plumbing Program, explained the way the brochure doesn’t.
The City of Hamilton grants up to $2,000 toward a backwater valve, downspout disconnection, and a sump pump installed alongside the valve — for single-family homes with basements, built before January 2012, connected to City sewers, taxes up to date. A building permit is required, and there’s also a loan option to the same $2,000 ceiling.
The catch: the full $2,000 only applies if you hire from the City’s short list of five pre-qualified plumbing contractors. Choose anyone else and the grant drops to $500. We’re not on that list — and honestly, we shouldn’t be: it’s a plumbing list, and we repair walls. Which is the other thing to know: the grant doesn’t pay for crack injection — no municipal program does. If your basement both leaks through a crack and backs up through a drain, the free assessment splits the problem honestly: the valve side goes to a pre-qualified plumber with the City’s money, the crack side gets sealed by us from $750 with a lifetime transferable warranty.
Method follows moisture — and wall type comes first.
Metal ports on every injection, WSIB-insured crews, lifetime transferable warranty in writing. Flat published schedule city-wide — polyurethane $750–$1,000, epoxy $850–$1,500, tie-rod holes $75–$150, every additional crack 5% off. Run your numbers in the cost calculator or read the full injection guide.
Inside the flat ranges, three local factors.
Wall era and type leads everything here — a 1960s Mountain bungalow’s poured wall is a routine injection; a Strathcona century home gets an honest “not this method” and a pointer to the right one. Finished basements mean an access strip opened and patched, priced up front. Crack count discounts in your favour — every crack after the first is 5% off, and post-war pours often carry two or three. Full driver breakdown in the cost guide.
Four questions, instant range — polyurethane or epoxy, multi-crack discount included, no obligation.
One visit for most poured walls, any season.
Poured or century construction, moisture path, crack behaviour — the honest verdict, including “injection isn’t your fix.”
From the published schedule, multi-crack discount in. No pressure theatre.
Metal ports, resin matched to moisture, one to two hours of interior work — no excavation.
Lifetime coverage on the injected crack, transferable to the next owner.
Why the escarpment makes lower-city cracks work harder.
Every big storm sends the Mountain’s runoff downhill, and the lower city’s soils take the load — ground that stays saturated for days keeps hydrostatic pressure on basement walls long after the rain stops. That’s why the same hairline crack that stays dry in a Waterdown survey can weep for a week in a Crown Point basement. It also means sequencing matters below the brow: seal the wall cracks, keep downspouts discharging well away from the foundation, and let the City’s grant-funded plumbing handle the sewer side. Three different jobs, one dry basement.
Above the brow and below it.
Hamilton Centre, the East End, all Mountain neighbourhoods, Ancaster, Dundas, Stoney Creek, Waterdown, Binbrook, Glanbrook, Flamborough — the whole amalgamated city. More guides: Mississauga · Brampton · Vaughan · Markham · all service areas.
Backed by the DryShield family — a quarter-century of GTA basements kept dry.
Injection repairs warrantied for life — and the warranty moves with the house when you sell.
Full commercial coverage on every job, every crew, every home.
Eligible contractor for City of Toronto, Peel & Halton basement-flooding subsidy programs.
Inspection, honest diagnosis, and an exact per-crack quote — free, no pressure.
Your price is confirmed in writing before any work starts — no hourly surprises.
Same flat schedule as every city we serve: polyurethane injection $750–$1,000 per leaking crack, structural epoxy $850–$1,500, tie-rod holes $75–$150, each additional crack 5% off. Hamilton quotes move inside those ranges mainly on wall era and basement access — and if your wall turns out to be century stone rather than poured concrete, you get that answer free instead of a bill for the wrong repair.
No. The Protective Plumbing Program pays up to $2,000 toward a backwater valve, downspout disconnection, and a sump pump installed with the valve — for pre-2012 single-family homes, permit required, and the full amount only through the City’s five pre-qualified plumbing contractors (anyone else caps it at $500). Crack injection isn’t eligible work under any municipal program. The assessment tells you which parts of your water problem are grant-eligible plumbing and which are wall repair.
No — and be wary of anyone who says yes. Injection seals cracks in poured concrete; stone, rubble and brick foundations are assemblies of pieces and mortar, and resin injection can’t restore them. What those walls need is repointing, parging, or interior drainage work depending on condition. We’ll tell you which at the assessment and point you at the right kind of contractor — free, because selling you the wrong method would cost you twice.
Meaningfully. Mountain neighbourhoods are largely post-war poured concrete — textbook injection candidates as original damp-proofing ages out. The lower city mixes pre-war foundations with escarpment drainage: storm water coming off the brow works those older walls hard, so where the wall IS poured concrete, a sealed crack matters even more. The era table above maps it; the free assessment settles your specific wall.
Yes — the whole amalgamated city, from Flamborough to Binbrook. Crews come down the QEW from our North York base with travel built into the flat pricing, and one visit completes most poured-wall repairs, so distance doesn’t change what you pay.
Correct, the Protective Plumbing Program only covers homes built before January 2012 — but a post-2012 home has two better cards to play. First, cracks that young may fall under your builder’s Tarion warranty: water penetration through the basement is covered for two years after closing, major structural defects for seven. Second, newer poured walls are exactly what injection handles best. The assessment sorts warranty from repair before you spend anything.
Free assessment with an honest wall-type verdict first — then flat pricing, one-visit repair, and a lifetime transferable warranty on poured-wall injections.
