Energy-efficient vinyl windows, entry doors, and patio doors — manufactured in Calgary and supplied direct to Slave Lake. Replacement, new construction, and wholesale contractor supply.
Alberta Windows and Doors Supplier manufactures and supplies premium vinyl windows and insulated doors for homeowners, builders, and renovation contractors in Slave Lake, Alberta. Skip the dealer markup — order factory-direct windows engineered for the Alberta climate and delivered to Slave Lake.
From -40°C cold snaps to summer hailstorms, homes in Slave Lake need windows built for extremes. We manufacture ours with reinforced vinyl profiles, double or triple glazing, and ENERGY STAR® certified glass packages designed for Alberta's climate.
Need windows supplied to a job site in Slave Lake? We deliver. Need them installed in your home? Our installation crews handle full-frame and retrofit replacements in the Slave Lake area, finished clean and caulked, with old windows hauled away.
Get a free, no-obligation quote for windows and doors in Slave Lake today. Call (403) 630-4628 and tell us what you're working on — we'll measure, quote, and build to your exact sizes.

54 Ave SE, Calgary, AB T2C 2E3
Mon–Fri 9 AM–5 PM
From a single failed sealed unit to a whole-home window replacement in Slave Lake, we manufacture each window to the exact opening and install year-round, winter included.
Fusion-welded, multi-chamber vinyl windows built in Calgary and supplied to Slave Lake — casement, awning, slider, hung, picture, and bay/bow styles in custom sizes and colours.
For Slave Lake winters we recommend our energy-efficient glass packages: Low-E coatings, argon fill, warm-edge spacers, and optional triple glazing for maximum comfort.
Insulated steel and fiberglass entry doors, patio doors, and garden doors supplied and installed in Slave Lake — foam cores, multi-point locks, and factory finishes.
Our basement windows replace rusty builder originals in Slave Lake homes with bright, code-sized vinyl units that end winter frost and condensation.
Builders and renovators in Slave Lake buy from us factory-direct: volume pricing, 2–4 week lead times, and job-site delivery from our Calgary plant.
A few of the products we manufacture and supply to Slave Lake — see the full product line.

Top-hinged windows that open outward like an awning — ventilate your home even while it rains or snows.
DetailsHorizontal-gliding windows — practical, affordable, and the go-to choice for basements and wide openings.
Details
The warmth of real wood grain with none of the maintenance — no rust, no rot, no warping, ever.
DetailsFactory-direct pricing from a Calgary manufacturer. Custom sizes, honest quotes, no pressure. Mon–Fri, 9 AM–5 PM.
Yes. Alberta Windows and Doors Supplier manufactures vinyl windows and exterior doors in Calgary and supplies them throughout Alberta, including Slave Lake. We offer supply-only for contractors and DIYers, plus full professional installation for homeowners.
Absolutely. Our windows are built for the Prairies climate zone with fusion-welded multi-chamber vinyl frames, Low-E argon glass, and optional triple-pane packages — ideal for the cold snaps and temperature swings Slave Lake sees every winter.
Most custom orders are manufactured in 2–4 weeks. Installing an average Slave Lake home (8–12 windows) usually takes one to two days. We install year-round, including winter.
Yes. Builders, renovators, and property managers in Slave Lake get dedicated volume pricing on windows and doors, direct from our Calgary factory. Call (403) 630-4628 to set up contractor pricing.