Structural & Leak Repair
Foundation Crack Repair in Calgary
Low-pressure polyurethane and structural epoxy injection that seals leaking foundation cracks permanently, usually in a single visit.
Foundation Crack Repair Done Right in Calgary

If you need foundation crack repair in Calgary, a leaking crack in a poured concrete wall is one of the most common ways water gets into a basement. Most cracks start as harmless shrinkage as the concrete cures, but Alberta freeze-thaw cycles and shifting clay soils widen them until they weep every spring.
We repair cracks from the inside using low-pressure injection. Polyurethane flexes with the concrete and stops active water, while structural epoxy welds the crack back to full strength where needed. The repair is clean, fast, and backed for the life of the structure against water re-entry.
What's Included
- Inspection to confirm the crack is non-structural or structural
- Surface preparation and injection port placement
- Low-pressure polyurethane injection for active leaks
- Structural epoxy injection where strength must be restored
- Full-depth fill from footing to grade, not just a surface patch
- Clean finish and a transferable written warranty
Common Signs You Need This Service
- A visible vertical or diagonal crack in a poured wall
- Water trickling or staining below a crack after rain
- Damp carpet or boxes against one section of wall
- White mineral deposits tracing a crack line
- A crack that has grown wider or longer over time
- Musty smell localized to one area of the basement
Our Process
- Assess the crackWe confirm whether the crack is a simple shrinkage leak or needs structural reinforcement.
- Set injection portsWe mount ports along the crack and seal the surface to hold injection pressure.
- Inject full depthWe inject resin from the bottom up so it fills the crack through the entire wall thickness.
- Cure and verifyThe resin cures into the crack, bonding to the concrete and blocking the water path.
- Finish and warrantyWe remove ports, tidy the surface, and register your warranty against re-entry.
Methods & Options Compared
The right resin depends on whether the crack is actively leaking, structural, or both.
| Resin | Property | Best for |
|---|---|---|
| Polyurethane | Flexible, foams to fill and follow movement | Active water leaks and hairline cracks |
| Epoxy | Rigid, restores concrete strength | Structural cracks that need reinforcement |
| Combination | Structural bond plus flexible seal | Wide or load-bearing cracks that also leak |
What Affects the Price
Crack injection is one of the most affordable waterproofing repairs. Price depends on:
- Number of cracks to be injected
- Length and depth of each crack
- Whether polyurethane, epoxy, or both are required
- Access, including removing finished drywall to reach the crack
- Any additional sealing at cold joints or tie holes
Local Calgary Considerations
Poured concrete foundations across newer Calgary communities like Auburn Bay, Mahogany, and Evanston commonly develop vertical shrinkage cracks within the first few years as the concrete cures and the clay backfill settles. These are usually straightforward to inject, and catching them early prevents years of spring seepage.
Why Choose Us
Why Calgary Trusts Waterproofing Pros Calgary for Foundation Crack Repair
Most Repairs Done in One Visit
A typical crack injection is completed in a few hours with no excavation. You get a permanent fix without living through days of construction.
We Fill the Whole Crack
We inject from footing to grade so the resin fills the crack through the entire wall thickness. Surface patches only hide the problem and fail within a season.
Warranty Against Re-Entry
Our crack repairs are backed for the life of the structure against water re-entry, transferable to the next owner. If it ever weeps again, we come back.
Social Proof
What Our Customers Say
Water was coming in along the basement floor every spring. They installed an interior weeping tile system and sump, explained every step, and the basement has stayed bone dry since. No pressure, honest pricing.Kendall M.Calgary NW
Had two foundation cracks injected. Crew showed up on time, sealed everything in a morning, and cleaned up after. Fifteen years transferable warranty gave us real peace of mind.Dave R.Airdrie
After the spring melt our crawl space smelled musty and damp. They encapsulated it and added a sump. Huge difference in air quality upstairs and our energy bill actually dropped.Priya S.Cochrane
FAQ
Frequently Asked Questions
Is a foundation crack a structural problem?
Most vertical cracks in poured walls are shrinkage cracks and are not structural, but they still leak. Horizontal cracks, stair-step cracks in block, or bowing walls can indicate structural movement, which we assess during the inspection and reinforce with epoxy or additional measures if needed.
Can you repair a crack from inside?
Yes. Low-pressure injection is done entirely from inside the basement, with no digging. Only in specific cases, such as a badly deteriorated exterior, do we recommend addressing it from outside.
How long does the repair last?
A properly injected crack is a permanent repair. Polyurethane flexes with seasonal movement so it keeps sealing, and our warranty against re-entry is transferable with the home.
Will the crack be visible afterward?
The wall surface is cleaned up and the ports removed. The repair is tidy, though on an unfinished wall a faint line may remain. Cosmetic finishing can be done once the repair has cured.
What if I have several cracks?
We inject each crack and often reduce the per-crack price when multiple are done in the same visit. We will lay it out clearly in your written quote.
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We diagnose exactly where and why your basement leaks, then fix the source instead of hiding it behind new drywall.
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Foundation Damp Proofing
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Learn more →Get Your Free Foundation Crack Repair Quote
We will inspect, diagnose the source, and give you a fixed written price with a transferable warranty.
Get a Free Quoteor call (587) 550-0000