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Foundation Repair

Foundation Crack Repair in Calgary

Epoxy and polyurethane injection for vertical, horizontal, and hairline foundation cracks. Permanent repairs with a lifetime warranty — done in one visit.

Calgary's #1 cause of basement water entry

Foundation cracks are the most common source of water infiltration in Calgary homes. Our city's expansive clay soils and aggressive freeze-thaw cycle — with temperatures crossing 0°C over 100 times per year — create relentless pressure on concrete foundation walls. The result: cracks that start as hairlines and widen every winter.

Epoxy vs. polyurethane — we choose the right material

Not all cracks are treated the same way. Epoxy injection is a rigid, structural-grade repair ideal for dry cracks where restoring load-bearing integrity matters. Polyurethane foam injection is flexible and moisture-activated — ideal for actively leaking cracks. We assess each crack individually before choosing a material.

What types of cracks we repair

  • Vertical cracks — the most common type; usually concrete shrinkage or minor settlement
  • Diagonal cracks — indicate differential settlement; require monitoring and sealing
  • Horizontal cracks — the most serious type; indicate lateral soil pressure and require immediate attention
  • Cold joint cracks — at the seam between floor slab and wall; common spring leakage point
  • Rod holes — small circular voids from construction tie rods that can admit water over time

The Wizard Crack Repair difference

We repair the crack from the interior — no excavation, no jackhammers, no landscaping destruction. Most foundation crack repairs are completed in 1–3 hours. The repaired crack is sealed through its full depth, and our lifetime warranty means if it ever leaks again, we return and fix it at no charge.

Frequently asked questions

How long does the repair take? A single crack typically takes 1–2 hours. Three to four cracks in the same visit takes a half day.

Do I need to leave the house? No. All work is done from inside the basement with no disruption to other areas of the home.

Will the repair be visible? The ports are removed and the surface is patched flush. Once painted, the repair is essentially invisible.

Is the repair permanent? Yes — properly injected epoxy or polyurethane bonds chemically to the concrete and does not deteriorate. Our lifetime warranty backs every repair.

How crack injection works

Professional injection seals a crack through its full depth — creating a bond stronger than the surrounding concrete.

Foundation crack injection cross-sectionCross-section of a concrete foundation wall showing a crack being sealed with epoxy injection portsOUTSIDEINSIDEWaterInjection portsEpoxy fillCONCRETE WALL
01
Assess
Crack type, width, and moisture determine epoxy vs polyurethane.
02
Prep
Ports bonded every 6–12 inches along the crack length.
03
Inject
Material pumped from lowest port upward until full depth filled.
04
Cure
Epoxy cures in 24 hrs. Ports removed, surface patched flush.

Ready to fix it for good?

Free on-site estimate — most repairs done in one visit.