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Concrete Driveways in Markham
We pour new and replacement concrete driveways across Markham, from the old streets of Unionville and Markham Village to the newer surveys in Cornell and Berczy. Most of Markham sits on clay-rich till that swells when wet and lifts with frost, so the base under the slab decides how long the driveway lasts. Union-certified crews, a free written quote that holds, and a lifetime warranty on labour.
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Reviewed June 2026
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Markham sits on the South Slope of the Oak Ridges Moraine. Under most lots is a clay-rich till. Clay swells when it takes on water, and it lifts when frost drives down under a slab in January. A driveway poured on this ground without a deep, packed base tends to crack and ride up within a few seasons.
So a Markham driveway is decided in the base, not on pour day. The full spec lives on our concrete driveways page; this page is about what a Markham driveway needs in particular.
A base built for Markham clay
We excavate to stable ground, compact a Granular A base, and pour 32 MPa air-entrained concrete, the mix for slabs that live with freeze-thaw and road salt. Then we cut the control joints where the slab wants to crack.
Toward the north of the city, the moraine turns sandier and drains faster. There, the worry shifts from heave to washout and grading. We decide the base on site, after we see your ground.
Lots near the Rouge and its creeks
The Rouge River and its creeks, Berczy Creek and Bruce Creek among them, run through Markham. Homes near those valley bottoms sit on ground that stays wet well into the spring. On those lots, the soil decides how deep and how hard we set the base.
We also grade the new slab so water drains away from it and from the house.
Old cores and new surveys
In Unionville, Markham Village and old Thornhill, many driveways have been poured over once or twice already, often on a base thinner than we use today. Replacing one starts with tear-out: we break out the old slab, haul it away, fix what made it fail, and pour fresh.
In Cornell, Cathedraltown, Berczy and Greensborough, the work is often a household's first real driveway, or a drive widened past the builder's strip. The fill a builder backs against a new foundation keeps settling for a year or two, so we test how firm the ground is before any concrete goes down.
Markham lies east of our home routes, so we group Markham jobs into planned trips into York Region and book them on firm dates. A new slab needs vehicles kept off for 48 hours at least, so plan the pour around when you need the car.
Straight answers
Why do driveways in Markham crack and lift?
Mostly the clay. Markham's clay-rich till swells when wet and lifts with frost, and an older driveway was rarely set on the base depth we use today. A panel tips, the crack opens, and each winter widens it. A new driveway on a deep, compacted base and an air-entrained mix stands up to it.
We have a new build in Cornell or Berczy. How soon can we pour a driveway?
The fill around a new foundation keeps settling for a year or two, and a slab on ground that is still dropping cracks early. We test how firm the base is before we pour, and we tell you plainly if the lot needs more time.
Our old Markham Village driveway is cracked all over. Patch or replace?
There is a point where patching is money down a hole. Then a new slab on a base built right costs you less over the years than chasing cracks. We come and look, and tell you plainly whether yours is past saving. Tear-out and disposal go in the written quote.
How much does a concrete driveway cost in Markham?
Size, finish, the old slab and the base the ground needs, access for the truck and the season set the number. A flat figure online would only mislead you. We give you a written number after a free visit, and the number on the quote is the number you pay unless you change the job.
Keep reading
- Concrete Driveways across Southern OntarioThe full spec: mix, base depth, joints, finishes and cure times.
- Concrete Contractors in MarkhamEverything else we pour and repair in Markham, from the Unionville and Markham Village cores to Cornell and Berczy.
- Basement Waterproofing in MarkhamWhy basements near the Rouge creek valleys take on water, and how we fix it.
- Concrete Removal & DemolitionReplacing an old driveway starts with tear-out and disposal. Here is what that involves.
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