Slim-frame aluminum windows in a warm interior

Aluminum Windows · Montreal, Quebec

Aluminum Windows in Montreal.

Thermally broken aluminum windows for Montreal builders, architects, and homeowners, glazed for a National Building Code zone 6 winter and custom sized to the plex and greystone openings a stock window line was never built to fit.

In short

Montreal's zone 6 cold and its heavy road-salt winters call for a low U-factor, triple-pane thermally broken frame, and a sill and finish that shrug off the calcium chloride spray a plow throws at every ground-floor window through a real Quebec winter. Crateworks sources that spec factory-direct, sized to the narrow, tall openings of the city's triplex and greystone stock.

Built for Montreal’s climate

Montreal sits in National Building Code climate zone 6, a genuine cold-humid climate where a hard winter and a muggy Quebec summer both leave their mark on a window. Insulation value carries most of the winter load, so a low U-factor, warm-edge spacer, and triple-pane glazing matter more here than in a house built for a cooling climate. The other local factor is what falls on the sill all winter. Montreal salts its streets hard and often, and the spray a plow throws reaches ground-floor windows on any street-facing triplex, so the frame finish and hardware need real corrosion resistance, not a coating rated for a drier or gentler winter. Add the summer side of the swing, humid enough to test seals and glazing that were only ever proven against a dry cold, and the spec has to answer both seasons, not one. The buying window here runs May through July, so an order placed in that stretch is what protects a fall or next-spring install, not a scramble once the ground freezes.

Climate zone
NBC Zone 6 (cold-humid)
Best time to spec
May to July
What we plan for
deep cold, heavy snow, freeze-thaw, and humid summers

Why it suits Montreal

A wood sash in a Plateau triplex swells shut most Julys and sticks again by January, the two-season punishment this climate delivers on wood that a milder city never sees. Vinyl can crack at the corner welds once deep cold sets in, and the calcium chloride that de-ices the sidewalk out front is hard on a lot of factory finishes over a few winters. Aluminum with a proper thermal break skips all three failure modes and takes a road-salt winter without the finish chalking. Because most Montreal openings, a narrow plex bay, a tall greystone sash in Westmount or Outremont, were never built to a modern stock size, sourcing direct is what puts triple-pane glazing and a genuine custom cut on the same budget a standard double-pane retrofit would cost elsewhere.

Container-direct delivery into Greater Montreal.

How it ships to Montreal: Freight lands right at the Port of Montreal on the St. Lawrence Seaway, in the metro itself.
Explore the full aluminum windows range →

Explore the range

Aluminum Windows types

Slim-frame aluminum windows in a warm interior

Casement

Casement, sourced to your spec.

Slim-frame aluminum windows in a warm interior

Tilt & Turn

Tilt & Turn, sourced to your spec.

Slim-frame aluminum windows in a warm interior

Double-Hung

Double-Hung, sourced to your spec.

Slim-frame aluminum windows in a warm interior

Specialty Shapes

Specialty Shapes, sourced to your spec.

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 Montreal. One order, one point of contact.

One source for the whole project

Building the whole windows & doors in Montreal?

Interior black-framed metal and glass door

Steel Doors in Montreal

Steel Doors, container-direct to Montreal.

Custom kitchen cabinetry with integrated detailing

Custom Cabinets in Montreal

Custom Cabinets, container-direct to Montreal.

Engineered hardwood flooring in a sunlit room

Hardwood Flooring in Montreal

Hardwood Flooring, container-direct to Montreal.

Common questions

On any street-facing opening, yes. Plow spray and calcium chloride reach ground-floor sills all winter, so frame finish and hardware are specced for that exposure, not carried over from a drier-climate coating.
That is most of the order. Plex bays and Westmount or Outremont greystone sashes rarely match a stock size, so we build to the opening's actual dimensions, not a fixed size chart.
It does. Seals and glazing are specced to handle a genuinely humid Quebec summer on top of the low U-factor a real winter demands, which a dry-cold climate spec was never tested against.
The buying window here runs May through July. Ordering in that stretch is what protects a fall or next-spring install date, rather than waiting until the ground freezes to start.

Nearby: Ottawa · Toronto · Winnipeg

Spec aluminum windows for Montreal.

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

Get a Montreal quoteTrade program