Slim-frame aluminum windows in a warm interior

Aluminum Windows · Kelowna, British Columbia

Aluminum Windows in Kelowna.

Thermally broken aluminum windows for Kelowna new builds and lakefront renovations, glazed for a valley that runs cold-winter insulation and hot-summer solar control through the same frame.

In short

Kelowna asks a window to do two opposite jobs in the same year, hold heat through an Okanagan winter and reject the strongest UV load in interior BC by July. Crateworks specs a thermally broken aluminum frame with a UV-rated glazing package built for that swing, not a single-season product.

Built for Kelowna’s climate

Kelowna sits in NBC Zone 5, semi-arid, which is a different problem than a straight cold climate or a straight hot one. Winter still calls for a low U-factor and warm-edge spacers to hold heat, but an Okanagan summer brings some of the strongest, driest UV exposure in the province, off open water on the lake and off vineyard rows that offer no shade at all. A window spec built for one season and not the other under-performs the other half of the year, so the glazing package has to carry a UV-rated coating alongside the insulation value, not one at the expense of the other. Lakefront and hillside builds in Kettle Valley, Lower Mission, and Upper Mission also tend to spec larger openings for the view, which pushes both numbers harder across a bigger sheet of glass. The build season here runs roughly April through September, so ordering ahead of spring is what keeps a project on schedule.

Climate zone
NBC Zone 5 (semi-arid)
Best time to spec
April to September
What we plan for
hot dry summers, cold winters, and strong Okanagan UV

Why it suits Kelowna

Wood holds a traditional look but this valley's swing works against it twice over, drying and checking under summer UV, then moving again as winter cold sets in, a double stress a marine or a purely cold climate never puts on a frame. Aluminum with a PA66 polyamide thermal break skips both failure modes and takes the UV-rated coating without the maintenance a stained or painted wood frame demands every few years. Sourcing direct is what puts that dual-season glazing package and a wider clear span for a lake or vineyard view on the same budget a standard single-season window would cost.

Container-direct delivery into Kelowna and the Okanagan Valley.

How it ships to Kelowna: Freight lands at the Port of Vancouver, then a truck or rail leg over the Coast Mountains into the Okanagan.
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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 Kelowna. One order, one point of contact.


One source for the whole project

Building the whole windows & doors in Kelowna?


Common questions

Yes. Alongside the winter insulation value, it needs a UV-rated glazing package for Okanagan summer sun, a coating a purely cold-climate frame usually skips.
That is most of what we quote in Kettle Valley and along the Kelowna waterfront, larger clear spans specced to carry the UV and insulation numbers across a bigger sheet of glass, not a stock size.
CSA-A440 covers the performance testing generally for an Okanagan build; confirm the exact rating your project needs locally, since requirements vary by municipality.
Generally over the winter. The Okanagan build season runs roughly April through September, so an early order protects your slot before that window fills.

Nearby: Vancouver · Victoria · Calgary

Spec aluminum windows for Kelowna.

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