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Stamped & Decorative Concrete in Markham
We pour stamped and decorative concrete across Markham: patios, front walks, porches and driveway borders, from 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, and a crack shows more in a stamped surface than in a plain one, so the base under the pattern matters most. Union-certified crews handle the colour and stamping, the labour carries a lifetime warranty, and the written quote is free.
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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.
In Unionville, Markham Village and old Thornhill, a stamped walk or patio can sit beside a century-old house in a slate or flagstone pattern.
The full method, with the pattern families, the colour, the mix and the joints, is on our stamped and decorative concrete page. This page covers what Markham changes about the job: the clay under the slab, the timing on a new lot, and the salt and freeze-thaw that wear the sealer.
Markham clay: why the base matters more under a pattern
Most of Markham sits on the South Slope of the Oak Ridges Moraine, over a clay-rich till. Clay swells when it takes on water, and it lifts when frost drives down under a slab in January. Every outdoor slab moves a little. On a broom finish a small crack is easy to live with. On a stamped surface it cuts across the stone pattern.
So the pattern starts below the slab. We dig to firm ground, compact a granular base, and pour 32 MPa air-entrained concrete. We cut the control joints along the pattern's grout lines, so shrinkage opens inside a line your eye already reads as part of the stone. Lots near the Rouge River and its creeks hold water longer in spring, and on those the soil decides how deep and how hard we set the base.
Old cores and new surveys
In Unionville, Markham Village and old Thornhill, stamped work is usually a replacement or a small addition: a tired walk or porch landing comes out, and a decorative surface goes in. Unionville's Main Street is a heritage conservation district, so keep a street-facing job in line with the look of the street. We bring the manufacturer charts to the site visit and match the colour against your brick and stone.
In Cornell, Cathedraltown, Berczy and Greensborough, stamped finishes are often part of the first work on a new lot. The fill a builder backs against a new foundation keeps settling for a year or two. We test how firm the base is before any concrete goes down, and we tell you plainly if the lot needs more time.
Markham lies east of our home routes, so we group Markham jobs into planned trips into York Region and book them on firm dates.
Sealer, salt and winter
Colour on stamped concrete lasts as long as the sealer over it. Sun, snow shovels and the road salt of a York winter wear that coat down. Plan to reseal every two to three years. We put that schedule in writing before you sign.
Stamping is a race against the set: the crew has a couple of hours after the pour to colour, stamp and detail the whole surface. We staff each pour with enough certified finishers to beat the set.
Straight answers
Will a stamped patio crack on Markham clay?
Any outdoor slab can move as clay freezes, thaws and swells. We control where it moves: we dig to firm ground, compact the base, and cut the control joints along the grout lines so shrinkage opens inside the pattern. If a failure comes from our workmanship, the lifetime warranty on labour brings us back.
We have a new build in Cornell or Berczy. When can we pour a stamped patio?
Let the lot ride out a winter first. 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. Ask for the quote in spring to get a better summer date.
Can you add a stamped walk to a heritage home in Unionville?
Yes. Unionville's Main Street is a heritage conservation district, and street-facing work should match the look of the street. We bring pattern and colour charts to the site visit and match them against your brick and stone, so the new surface suits the house you already have.
How much does stamped concrete cost in Markham?
Stamped is priced as an upgrade over a plain broom finish. The size, the pattern, the colours, the hand detail and the base the clay needs all move the number. We do not post a figure, because it would mislead you. The free written quote can price the plain and stamped versions side by side, and the number we write down is the number you pay unless you change the job.
Keep reading
- Stamped & Decorative Concrete across Southern OntarioThe full method: patterns, colour, the mix, joints cut along the grout lines, and the resealing schedule.
- Concrete Contractors in MarkhamEverything else we pour and repair in Markham, from the Unionville and Markham Village cores to Cornell and Berczy.
- Concrete Patios in MarkhamMost stamped work lands on a patio. How we build a patio on Markham clay.
- Concrete Driveways in MarkhamThinking of a stamped border on the driveway? Start with the base the clay needs.
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