Guides
Stamped Concrete vs. Exposed Aggregate: Which Patio Finish for Calgary?
If you've settled on concrete for your patio, the next decision is the finish — and stamped concrete in Calgary isn't automatically the right answer just because it looks the most finished. Exposed aggregate costs less, needs resealing less often, and handles a wet or icy patio better; stamped concrete gives you a more decorative, uniform look. Here's what actually separates them once you're past the photos.
What's the real cost difference between stamped concrete and exposed aggregate in Calgary?
Stamped concrete runs $12–$18 per square foot installed; exposed aggregate runs $10–$15 — plain broom-finish concrete sits below both at $6–$8. Stamped costs more mainly for the decorative form-and-color work, not because it's a more durable material.
Verified against Omega Ready Mix's Calgary finish comparison guide, dated 14 April 2026, checked September 2026.
| Broom finish | Exposed aggregate | Stamped concrete | |
|---|---|---|---|
| Cost per sq. ft. (Calgary) | $6–$8 | $10–$15 | $12–$18 |
| Resealing interval | Less critical than decorative finishes | Every 2–3 years | Every 1–2 years |
| Slip resistance | Best of the three | Good — slightly less than broom | Can be dangerously slippery when wet or icy |
Which one holds up better to Calgary's freeze-thaw cycle?
Exposed aggregate needs resealing less often — every 2 to 3 years against stamped concrete's 1 to 2. Calgary's freeze-thaw cycles and UV exposure specifically cause stamped concrete's film-forming sealer to peel, whiten, and flake, which is a maintenance problem exposed aggregate's sealer doesn't have to the same degree.
Verified against Omega Ready Mix's Calgary finish comparison guide, dated 14 April 2026, checked September 2026.
Is one of these more dangerous when wet or icy?
Yes — stamped concrete can be dangerously slippery when wet or icy, which matters on a Calgary patio that sees both rain and ice for a good part of the year. Exposed aggregate's texture gives it good slip resistance, only slightly behind a plain broom finish.
What happens if one gets damaged and needs a repair patch?
Both are genuinely hard to repair invisibly, just for different reasons. Exposed aggregate's challenge is matching the exact stone colour and size in the patch; stamped concrete's challenge is matching the colour, pattern, and texture of the original stamp — neither one is a quick, seamless fix the way plain broom finish can be.
So which one should you choose for a Calgary patio?
If the decorative, more finished look is worth resealing every year or two and being careful on it when it's icy, stamped concrete is the reason people choose it. If lower long-term maintenance and better footing in wet or icy conditions matter more, exposed aggregate is the safer bet — and it costs less to install either way. Neither is wrong; picking based on the photos alone, without knowing the upkeep, is the actual mistake.
Ready to pick a finish for your patio?
See our Calgary concrete patios page for the full build process, or our concrete patio base depth guide for how deep the base needs to be regardless of which finish you choose — the finish sits on top, but the base underneath is what actually keeps either one from cracking. Book a design consultation — we'll show you both finishes against your actual yard before you commit to one.
Written by
Iqbal Maan, Founder, Arch & Bow — a design-led deck, fence, railing, pergola, patio and fire pit builder serving Calgary and Airdrie homeowners, launching direct-to-homeowner in December 2026.