HomeServicesConcrete Repair & ResurfacingDunnville
Concrete Repair and Resurfacing in Dunnville, Ontario
We repair cracked, sunken and worn concrete on Dunnville homes: crack injection, slab lifting, resurfacing, step rebuilds and sealing. We find the cause before we quote the fix, and we tell you plainly when a repair will not hold and replacement is the better spend. The quote is free and written, and the labour carries our lifetime warranty.
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Free · no pressure · 1 business day
Reviewed June 2026
Every job is priced individually, not off a price list. Tell us about yours and you get an accurate, no-pressure quote in writing.
Dunnville grew up around a dam on the Grand River, and the streets around it still carry the town's oldest concrete: original walks, porch steps and slabs that have been through a great many winters. Out past the edge of town, the cottage rows from Port Maitland to Lowbanks add a steady run of small repairs.
Most of that concrete does not need to come out. A crack can be injected, a sunken slab lifted back to grade, a pitted surface ground and resurfaced, and a broken step formed and re-poured. The full method for each is on our concrete repair and resurfacing page. This page is about what Dunnville's ground and housing change about the job.
Why concrete in wet clay cracks and sinks
Dunnville sits at the low end of the Haldimand clay plain. The water table near the river mouth runs high, the clay drains slowly, and melt water stands against slabs and walls for weeks in spring.
So a Dunnville repair starts underneath. We check the base, the grade and where the downspouts send their water before we quote. A crack filled over a slab that is still moving opens again by spring, and a slab lifted while a downspout keeps washing out its base sinks again.
Steps, walks and cottage pads
On the older streets, front steps and walks were often poured long ago, and salt and freeze-thaw work on them from the top down. Spalled treads and broken edges are formed and re-poured with air-entrained 32 MPa mix. A worn surface on a sound step or walk can be ground back and given a bonded overlay instead of a tear-out.
Lakeshore cottage concrete stays wetter through more freeze-thaw cycles, so surfaces pit and spall earlier than the same pour would inland. We can quote from a site visit and schedule the repair for when access is easy.
When a crack is a foundation question
A crack in a walk or a garage slab is a repair job. A crack in a basement wall that leaks every spring, or one that keeps growing, is a different question, and in Dunnville's wet ground it is a common one.
For those, see our foundation repair and basement waterproofing work in Dunnville. We sort out which job your house needs at the free visit.
Straight answers
Should I repair or replace the cracked concrete at my Dunnville home?
It depends on the base. Repair wins when the damage is local and the base under it is still sound: one or two cracks, a slab that settled on one side, surface pitting or a broken step edge. Replacement wins when the slab has cracked all over, the base has failed across the whole area, or the surface has scaled so deep there is nothing sound to bond to. The written quote says which side of that line your concrete is on, and why.
Can you lift a sunken walk or slab instead of replacing it?
Often, yes. We pump material through small holes drilled in the slab to fill the void under it and float it back to grade. Mudjacking uses a sand-and-cement slurry and wants a day or two before traffic; polyurethane foam uses smaller holes and takes traffic the same day. Before we lift, we find out why the base washed out, so the slab does not sink again.
Do you repair concrete at lakeshore cottages near Port Maitland or Lowbanks?
Yes, the lakeshore cottages are regular stops on Dunnville route days. If the cottage is closed for the season, we can quote from a site visit and schedule the work for when access is easy.
How much does concrete repair cost in Dunnville?
There is no honest flat rate, so we do not quote one here. The visit and the written quote are free, and the number on the quote is the number on the invoice unless you change the job.
Keep reading
- Concrete Repair & ResurfacingThe full method: crack injection, slab lifting, resurfacing, step repair and sealing.
- Concrete Contractors in DunnvilleEverything else we pour and repair in Dunnville, from the old downtown to the lakeshore cottages.
- Parging in DunnvilleFlaking foundation parging is a different repair, handled on its own page.
- Foundation RepairBasement wall cracks that leak or keep growing need a foundation repair, not a surface patch.
- Basement WaterproofingSpring water coming in below grade needs a waterproofing fix first.
Tell us about the job.
Send the details and we'll get back to you within one business day with next steps. If water is coming in right now, check the box and we flag it urgent.
Get a straight quote
Free · no pressure · 1 business day