Basement Crack Repair in Markham
Foundation crack? Don't wait. We use low-viscosity polyurethane injection that penetrates deep, expands to fill every micro-fracture, and stays flexible for life. Fast, clean, no excavation required for most cracks.
Signs you need basement crack repair
- ✓Visible vertical or diagonal crack in basement wall
- ✓Damp staining or white efflorescence near a crack
- ✓Active dripping during heavy rain
- ✓Crack that's wider than a credit card edge
Written Workmanship Warranty
Our work is backed for life — and the warranty stays with the home if you sell. That's a real selling feature when you list your Markham property.
Free, no-pressure inspection
A real local technician comes out, diagnoses the actual source, and gives you a written fixed-price quote. We'll tell you if you don't even need us yet.
Our process
Inspect
Free assessment, identify all cracks.
Prep
Clean and seal the surface around the crack.
Inject
Polyurethane fills every micro-fracture, full depth.
Warranty
Lifetime transferable warranty on every injection.
Mold from a damp basement isn't just ugly — it's dangerous.
Hidden mold spores from a wet basement are linked to asthma attacks, chronic coughs, allergies and serious respiratory illness — especially in kids, seniors and anyone with a weak immune system. Every day you wait, it spreads further into your walls, insulation and air.
"Quick, clean, professional. Two cracks injected in under two hours. No mess, no upsells, just done."
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Frequently Asked Questions
What's the difference between polyurethane and epoxy injection?+
Polyurethane stays flexible and self-expands to fill micro-fractures — best for active leaks and cracks that move with seasonal foundation shifts. Epoxy is rigid and structural — best for static cracks where you need to bond the concrete back together.
How long does crack injection last?+
Done correctly, permanently. We back our crack injections with a written workmanship warranty.
Can I just patch the crack with hydraulic cement?+
No. Surface patches fail because they don't penetrate the full depth of the crack. Water finds another path through the same crack within months.
Wet basement? Don't wait.
Every day water sits in your basement, mold spreads and your foundation weakens. Talk to a real Markham waterproofing expert today — free advice, no pressure.