Slim-frame aluminum windows in a warm interior

Aluminum Windows · Calgary, Alberta

Aluminum Windows in Calgary.

Thermally broken aluminum windows for Calgary builders and homeowners, engineered for a chinook cycle that stresses a frame harder, and more often, than a steady prairie winter.

In short

Calgary's chinook winds can swing the outdoor temperature 20 to 30 degrees in a matter of hours, and that cycling fatigues a window's seals and thermal break faster than a steady, unchanging cold ever would. Crateworks sources a low U-factor, triple-pane frame built for that swing, sized for the mountain-view openings a foothills build calls for.

Built for Calgary’s climate

Calgary sits in National Building Code climate zone 7A, very cold, which sets the baseline spec on its own: low U-factor glazing, triple-pane construction, warm-edge spacers. What zone 7A doesn't capture is the chinook. Several times a winter, warm air off the Rockies pushes the temperature up 20 to 30 degrees in a handful of hours, then a cold front drops it back just as fast. A frame and gasket system rated only for steady cold handles one long freeze fine but fatigues under that repeated expansion and contraction, the seal compound hardens and the joinery works loose years before it should. The other local factor is the view. Custom homes in the foothills, the kind of build common in Calgary's energy-sector wealth, are increasingly specced with large glazed openings facing the mountains, which puts more structural and thermal load on fewer, bigger units than a standard-size window run. Order in the April through June window to land inside a Calgary build season that narrows fast once fall arrives.

Climate zone
NBC Zone 7A (very cold)
Best time to spec
April to June
What we plan for
deep cold, freeze-thaw, chinook swings, and snow load

Why it suits Calgary

Wood swells and splits as humidity swings, but the chinook-specific failure is faster: the wet-to-dry cycle that would take a season elsewhere happens here in an afternoon, and the joints open sooner for it. Vinyl frames that seemed fine on a mild day go brittle in the minus 30 snap that follows a chinook and can crack on the rebound. A thermally broken aluminum frame with a gasket system engineered for that cycling, not just a cold-tolerance rating, is what actually holds up. Sourcing direct is what puts that spec, plus the oversized mountain-view unit an Aspen Woods or Springbank lot wants, on the same budget a standard-size order would cost elsewhere.

Container-direct delivery into Calgary and southern Alberta.

How it ships to Calgary: Freight lands at the Port of Vancouver or Prince Rupert and rails over the Rockies into Alberta.
Explore the full aluminum windows range →

Explore the range

Aluminum Windows types


How it works

  1. 01

    Send your scope

    Drawings, a materials list, or a rough idea. No account, no obligation. Just tell us what the project needs.

  2. 02

    We source & spec

    We match products to your climate and local code, then price them factory-direct from vetted suppliers, not off a distributor's shelf.

  3. 03

    One delivered quote

    The whole schedule comes back as a single coordinated quote, delivered to Calgary. One order, one point of contact.


One source for the whole project

Building the whole windows & doors in Calgary?


Common questions

That's the spec we build to. Gaskets and thermal breaks are rated for repeated rapid expansion and contraction, the kind a chinook causes in hours, not just a single long cold snap the way a generic cold-climate window is tested.
Yes. Foothills lots in Springbank and Aspen Woods are increasingly specced with oversized glazed openings, and we engineer the mullions and glazing package for both the view and the load, wind, snow, and the chinook swing, that comes with it.
April through June is the window that lands you inside the install season before it narrows, and before early fall chinooks and first snow complicate a late build. Ordering after that risks pushing the whole schedule into next year.
Send drawings or a spec through /brief and we build to it, including the oversized units an Aspen Woods or Springbank foothills view calls for. Nothing here comes off a fixed catalog.

Nearby: Edmonton · Vancouver · Saskatchewan

Spec aluminum windows for Calgary.

Send drawings or a rough scope. We quote the Calgary delivered price, all-in.