A hairline crack in a foundation wall is almost always going to get worse. Water gets in, frost works the crack wider, and what was cosmetic last fall is leaking next spring. Abbotsford Concrete inspects each crack, classifies it, routes and cleans it, then injects or seals it depending on whether it is active or stable, so it stops moving and stops letting water through. Every assessment is free and the quote is written.
Foundation cracks are mostly minor when they first show up, a hairline running down a wall, a small horizontal at the top of a pour. Left alone for a winter or two, water gets in, freezes, expands, and the crack opens wider. What was a ten-minute injection becomes a wall repair.
We assess each crack and classify it, vertical or horizontal, active or stable, dry or weeping. Vertical hairlines that are dry get sealed; weeping cracks get polyurethane injection that bonds and flexes; horizontal cracks that suggest pressure or movement get flagged for a closer look before they get repaired.
The same rigour applies whether we are here for one crack or a wall full of them, and it ties into our wider foundation services and the basement the wall is built into. Severe or active cracks are referred up to foundation repair.
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How it works
How We Repair a Foundation Crack in Abbotsford
Inspect and classify cracks
Each crack is inspected, measured, photographed, and classified as vertical or horizontal, dry or weeping, stable or active, so the repair matches the actual condition rather than a generic recipe.
Route and clean each crack
The crack is routed to a clean profile where required, any dust and loose material is removed, and injection ports are installed at the right spacing so the material reaches the full depth.
Inject or seal the crack
Active or weeping cracks get polyurethane injected through the ports, flexible bond, full depth; dry stable cracks get sealed at the surface. The fix is sized to the crack.
Verify and protect
Ports are trimmed, the wall is cleaned up, and the repair is rechecked after curing. Where the outside of the wall is at risk too, we recommend pairing with waterproofing.
When a crack is more than a crack
Some Cracks Need a Bigger Conversation
Most foundation cracks are routine, vertical, hairline, dry. Some are not. Horizontal cracks across a wall, stair-step cracks in block, cracks that change width through the year all suggest the wall is being pushed or pulled, and the right fix is structural, not cosmetic.
When we see those, we say so on the spot, refer to foundation repair or underpinning if the footing is involved, and quote that work separately. We are not going to inject over a structural problem.
Hairlines, horizontals, polyurethane injection, and when a crack means something bigger.
Most do, even hairline ones, because once water gets in and the freeze-thaw cycle takes over, a cosmetic crack becomes a leak. Sealing or injecting it early is much cheaper than fixing it after it has opened up.
Polyurethane is flexible, expands on contact with water, and is our default for active or weeping cracks. Epoxy is rigid and structural, used when bonding the two sides of the crack permanently is the goal. We choose based on the crack.
Yes, most cracks are injected from the inside through ports drilled into the wall, which avoids excavation. Exterior repair is reserved for cases where outside conditions are causing the crack or where pairing with waterproofing is the right call.
Usually yes. Horizontal cracks suggest the wall is being pushed by soil pressure or water; that is a structural issue and gets referred up to foundation repair. Vertical hairlines are usually just shrinkage and routine to fix.
A typical injection takes a few hours and the crack is sealed by the end of the visit. Larger or multiple cracks may take a day. The timeline is in the written quote so you know up front.
Homeowner reviews
What Abbotsford Homeowners Say About Their Crack Repairs
Hairline crack started weeping last spring. Injected from inside in one visit, sealed up properly, and it has stayed dry through the next season. Cheap and done.
H. W.
Abbotsford
★★★★★
They flagged one of my cracks as horizontal and recommended a structural look instead of just injecting. Could have charged me, didn't. That kind of honesty is rare.
I. R.
Langley
★★★★★
Three vertical cracks injected in one visit. No mess, no fuss, no return leaks. Quote was firm, work was clean, ports trimmed off so you barely see them.
P. N.
Chilliwack
★★★★★
Classified each crack on the wall and only repaired the ones that needed it. The rest were stable shrinkage and didn't need a thing. Saved real money.
V. L.
Mission
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Tell us about the cracks you are seeing, where they are, how big and whether they leak, and we will assess the wall free and put any repair work into a written quote.
