Find the Best Windows & Doors Companies Across Canada
Hand-picked local experts, vetted through our 30-point review. Compare the top 3 in your city and get free quotes — in one form.
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Browse our directory of Canadian cities and open your local windows & doors page.
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Featured Cities
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Why Homeowners Trust Mullions
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Every company is vetted for reputation, workmanship, and service before it's listed. Rankings aren't for sale.
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Local climate, local building codes, local rebates. Our city guides give advice that actually applies to you.
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Guides & Advice
View all articlesWindow Replacement Rebates in Toronto (2026): What You Can Claim
A plain-English guide to the federal, Ontario, and Enbridge rebates Toronto homeowners can use toward energy-efficient window and door replacement in 2026.
EnergyEnergy-Efficient Windows for Canadian Winters: What Actually Works
Triple-pane, low-E, argon, ENERGY STAR — a plain-English guide to which window upgrades cut heating bills in a Canadian winter, and which are marketing.
RebatesWindow Replacement Rebates in Ottawa (2026): What You Can Claim
The federal, Ontario, and Enbridge rebates and financing Ottawa homeowners can put toward energy-efficient window and door replacement in 2026.
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Browse Windows & Doors Companies by City
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Ontario
Quebec
- 📍Montreal
- 📍Quebec City
- 📍Laval
- 📍Gatineau
- 📍Longueuil
- 📍Sherbrooke
- 📍Saguenay
- 📍Levis
- 📍Trois-Rivières
- 📍Terrebonne
- 📍Repentigny
- 📍Saint-Jean-sur-Richelieu
- 📍Drummondville
- 📍Granby
- 📍Blainville
- 📍Saint-Jérôme
- 📍Shawinigan
- 📍Val-d'Or
- 📍Rimouski
- 📍Victoriaville
British Columbia
Alberta
Manitoba
- 📍Winnipeg
- 📍Brandon
- 📍Steinbach
- 📍Thompson
- 📍Portage la Prairie
- 📍Selkirk
- 📍Winkler
- 📍Morden
- 📍Flin Flon
- 📍The Pas
Saskatchewan
- 📍Saskatoon
- 📍Regina
- 📍Prince Albert
- 📍Moose Jaw
- 📍Yorkton
- 📍Swift Current
- 📍North Battleford
- 📍Estevan
- 📍Weyburn
- 📍Humboldt
Nova Scotia
- 📍Halifax
- 📍Sydney
- 📍Truro
- 📍New Glasgow
- 📍Kentville
- 📍Bridgewater
- 📍Amherst
- 📍Yarmouth
- 📍Antigonish
- 📍Wolfville
New Brunswick
- 📍Moncton
- 📍Fredericton
- 📍Saint John
- 📍Bathurst
- 📍Miramichi
- 📍Edmundston
- 📍Dieppe
- 📍Campbellton
- 📍Oromocto
- 📍Woodstock
Newfoundland and Labrador
- 📍St. John's
- 📍Mount Pearl
- 📍Corner Brook
- 📍Gander
- 📍Grand Falls-Windsor
- 📍Happy Valley-Goose Bay
- 📍Stephenville
- 📍Labrador City
- 📍Clarenville
- 📍Marystown
Prince Edward Island
- 📍Charlottetown
- 📍Summerside
- 📍Montague
- 📍Alberton
- 📍Souris
- 📍Kensington
- 📍Georgetown
- 📍Tignish
- 📍Borden-Carleton
Northwest Territories
- 📍Yellowknife
- 📍Hay River
- 📍Inuvik
- 📍Fort Smith
- 📍Fort Simpson
- 📍Behchoko
- 📍Norman Wells
- 📍Tuktoyaktuk
- 📍Fort Resolution
Yukon
- 📍Whitehorse
- 📍Dawson City
- 📍Watson Lake
- 📍Haines Junction
- 📍Faro
- 📍Carmacks
- 📍Mayo
- 📍Teslin
- 📍Ross River
Nunavut
- 📍Iqaluit
- 📍Rankin Inlet
- 📍Arviat
- 📍Baker Lake
- 📍Cambridge Bay
- 📍Pond Inlet
- 📍Igloolik
- 📍Kugluktuk
- 📍Cape Dorset