Basement Crack Repair — Edmonton & Area
Stop the water. Save the house. Dean's mini-hoe goes where the foundation needs it.
- 30+ years on Alberta foundations
- Same-day callbacks
- Real exterior excavation, not just patching
Why basement cracks get worse fast in Alberta
Edmonton sits on heavy clay soils that swell when wet and shrink when dry. That seasonal flex pushes and pulls on a poured concrete foundation every single year — and once a hairline crack forms, water starts using it as a path.
Then winter arrives. Water sitting in a crack freezes, expands by about 9%, and pries the crack open a fraction of a millimetre wider. Forty freeze-thaw cycles later, a hairline is a 1/4-inch leak.
Hydrostatic pressure does the rest. After a heavy spring melt or a thunderstorm, the saturated soil against your foundation is pushing inward with hundreds of pounds of force per square foot. That's why interior patching alone almost always fails — you're patching the inside of a dam from the dry side.
The only permanent fix for an actively leaking foundation crack in Alberta clay is to relieve the pressure from the outside, seal the source of the water, and re-establish drainage. That's what exterior excavation does.
Dig down, seal it right, backfill clean
Four steps. Usually one day. Dean runs the hoe himself — no subcontractors on your foundation.
- 1
Free on-site inspection
Dean walks the basement and the outside grade with you, identifies whether the crack is structural or cosmetic, and brings a borescope camera when the crack disappears behind drywall. You get a straight read — repair, replace, or leave alone.
- 2
Exterior excavation with the mini-hoe
We dig a precise trench down to the footing alongside the crack. The mini-hoe fits through 36-inch gates and reaches over fences, so we don't take out your landscape to reach the foundation.
- 3
Surface prep + permanent seal
The crack is routed, cleaned, and sealed with the right material for the failure mode — polyurethane for active leaks, hydraulic cement for void filling, and a dimpled drainage membrane bonded to the wall to direct future ground water down and away.
- 4
Drainage restored, yard put back
Weeping tile cleared or improved where needed, native backfill in compacted lifts so the trench doesn't settle, and the sod laid back into place. You get the before-and-after photos by text the next day.
Why exterior repair wins
Interior injection has its place. Here's the honest read on when each one is the right tool.
Cheap and quick — but doesn't fix the cause
- Good for dry hairline cracks above grade
- Good for emergency triage to stop active drips
- Cheaper up front — a few hundred dollars typical
- But: water keeps pushing on the crack from outside
- Will often re-fail within 2–5 freeze cycles on a below-grade crack
- Doesn't address weeping tile or drainage issues at all
Real fix. Sealed from the water side. Permanent.
- Seals the crack on the side the water is on
- Adds a dimpled drainage membrane so future ground water flows down, not in
- Lets us inspect and improve weeping tile while we're already there
- Designed to last decades, not seasons
- Warrantied seal — if it comes back, we come back
- One day on site for most single-crack jobs
If your situation is genuinely better suited to interior injection, Dean will tell you that on the inspection. We're not going to dig your yard up to make a point.
How to tell if your basement needs us
Walk your basement with this list. Two or more checked? It's time for an inspection.
- Visible cracks 1/8 inch or wider in poured concrete walls
- White efflorescence or rust-coloured staining on basement walls
- Persistent musty or earthy smell in the basement
- Peeling paint, bubbling drywall mud, or warped baseboards
- Damp spots or pooling after heavy rain or rapid snowmelt
- Mineral deposits crusting along the base of a wall
- Bulging, leaning, or stepped cracking in the foundation
- Standing water in the basement during spring melt
We work across Central Alberta
Based in Sherwood Park. On site across the Capital Region within a day or two of your call.
- Edmonton
- Sherwood Park
- St. Albert
- Leduc
- Stony Plain
- Spruce Grove
- Beaumont
- Fort Saskatchewan
- Devon
- Nisku
Outside this list? Call anyway — if it's within a reasonable drive we'll come look.
Dean Pawlick — 30+ years on Alberta concrete
River Valley Concrete has been pouring, repairing, and waterproofing residential concrete in the Edmonton area for more than three decades. Dean owns the company, owns the mini-hoe, and runs the hoe himself. He's the one in the trench. There are no subcontractors on your foundation — when you book RVC, you get Dean.
Every job is documented with photos at every step, sent by text the same day. Fully insured. Work backed by a written warranty on the seal. Straight answers on whether you need full exterior repair, interior injection, or nothing at all — because the goal is to fix your basement once, not sell you the most expensive option in the room.
Frequently asked questions
How long does a basement crack repair take?
Most exterior basement crack repairs are a single-day job — we excavate in the morning, prep and seal mid-day, and backfill before we leave. Larger cracks, multiple cracks, or jobs that need weeping tile work occasionally stretch into a second day. Either way, you know the plan before we start digging.
Will you damage my landscaping?
No more than we have to. The mini-hoe is specifically chosen because it fits through standard gates and along tight side yards without tearing up your fence, deck, or beds. We lift sod in sections, set it aside, and put it back. Where shrubs or hostas are in the way, we transplant them and water them in. The yard goes back the way we found it.
What if it's a small crack — is excavation overkill?
Sometimes, yes. If the crack is a dry hairline above grade with no staining, interior polyurethane injection is usually the smarter call and we'll tell you that on the inspection. We only recommend exterior excavation when the crack is below grade, actively leaking, widening, or showing signs of hydrostatic pressure behind it.
Do you offer a warranty?
Yes. Exterior crack seals carry a multi-year warranty on the seal and membrane work — if water finds its way back through the same crack within the warranty window, we come back and fix it at no cost. The exact term is written on your estimate so it's never a he-said-she-said.
Can you do this in winter?
Limited. Once the ground frosts past about a foot, excavation gets slow and the polyurethane and hydraulic materials we use need above-freezing application temperatures to cure properly. We can do interior work and emergency triage in winter, but exterior excavation jobs get scheduled for spring through fall. Book early — May and June fill first.
Will insurance cover it?
Sometimes. Sudden, accidental water damage from a foundation crack is often covered; long-term seepage usually isn't. We document the crack with dated photos and a written cause assessment so you have everything your adjuster needs. The decision is between you and your insurer — we just help with the paperwork.
How quickly can you come look?
Typically within 48 hours of your call. If you have active water coming in, tell us when you call and we move you up. The inspection itself is free, takes 30–45 minutes on site, and you get a straight answer about whether you actually need exterior repair or something less invasive will do the job.
Do you do interior repairs too?
Yes — interior polyurethane crack injection, hydraulic cement patching, and parging. We use interior repair when it's actually the right tool for the job. We don't use it as a band-aid for a crack that's going to keep leaking from the outside.
Free inspection — same-day callback
Tell Dean what you're seeing. He'll text or call you back today.
Servicing Central Alberta
One call, one inspection, one fix done right from the outside. Don't let another freeze-thaw season widen the crack.