Built for Ottawa’s climate
National Building Code zone 6 puts Ottawa a full step colder than Toronto or most of the GTA, with winter lows that regularly sit in the minus twenties and a stretch most years that goes lower. That calls for a low U-factor and triple-pane glazing as the baseline, insulation value doing the work, not a low-SHGC coating meant for a hot-summer climate. Ottawa's summers run humid too, its own consideration for interior condensation control on a well-sealed frame, a swing between a sticky July and a hard January that few other Canadian capitals see in the same year. The stone and brick housing stock around Rockcliffe Park and New Edinburgh also tends to have window openings that were never standard sizes to begin with, decades of additions and settling have seen to that, while newer Kanata builds want the same cold-climate spec in a stock opening. Order ahead of the spring window, generally April through June, when install crews and weather actually cooperate.
- Climate zone
- NBC Zone 6 (cold)
- Best time to spec
- April to June
- What we plan for
- deep winter cold, heavy snow, freeze-thaw, and humid summers
Why it suits Ottawa
Wood swells through a humid Ottawa summer and shrinks hard once the heat comes on in winter, a wider swing than a dry-climate city ever puts a frame through, and vinyl can turn brittle in a real minus-twenty stretch. Aluminum with a proper thermal break sidesteps both, and the same break that would reject heat in a hot climate is what stops heat loss here, the number that actually shows up on an Ottawa heating bill. Sourcing direct is what puts triple-pane glazing and a heritage-accurate custom size on the same budget as a standard double-pane order elsewhere.
Container-direct delivery into the National Capital Region.
Explore the range
Aluminum Windows types
How it works
- 01
Send your scope
Drawings, a materials list, or a rough idea. No account, no obligation. Just tell us what the project needs.
- 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.
- 03
One delivered quote
The whole schedule comes back as a single coordinated quote, delivered to Ottawa. One order, one point of contact.
One source for the whole project
Building the whole windows & doors in Ottawa?
Common questions
Spec aluminum windows for Ottawa.
Send drawings or a rough scope. We quote the Ottawa delivered price, all-in.