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Limited Time Offer
No Payments, No Interest for 365 Days!
With our wide range of ENERGY STAR products, you can be sure to save big on your next dream project!
Clera has been helping Canadians renovate their homes with custom windows and doors for nearly 5 decades. We design, manufacture, install, and service, which means you get REALLY good products at a REALLY good price.
100% of our products are manufactured on Canadian soil, by Canadian workers, for Canadian Families.
When we say we’re a Canadian Family-Owned and Operated company, we mean it. In fact, 75% of our current staff joined us through family & friend referrals, or have brought in their own family & friends to help grow our team.
That means by Choosing Clera, you’re choosing to support Canadian families, just like we have for 50 years.
With some of the highest ratings for customer satisfaction, it's clear why Clera is Ontario's most awarded window company!
9.2/10
on HomeStars
16x Homestars Winner
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Why take a chance with other window or door companies that purchase their products from another supplier, only to resell them to you for a higher cost?
Clera Windows + Doors is one of Canada’s largest, oldest, most dependable and reputable vinyl window manufacturers in Ontario. We fully manage and take care of your door and window replacement project from start to finish, ensuring every stage of your window or door project meets our lofty standards of craftsmanship.
Why are we Ontario’s most awarded window and door company?
Factory-Direct Pricing
(No Middleman Markup)
Lifetime Warranty (Non-Prorated & Transferable!)
45+ Sales and Installation Offices Across Ontario
Certified Technicians and A+ BBB Rating
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ENERGY STAR® Certified Windows & Doors
Made in Canada for Canadian Homes
Looking for new casement windows? Get a free consultation from Clera Windows + Doors today. Let our team of experts help you select the perfect casement windows for your home.
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Stay informed with expert tips, product insights, and home improvement advice tailored to Canadian homeowners.
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Browse real project photos to see how Clera windows and doors transform homes across Ontario.
Find everything you need—from maintenance tips to warranty details—to keep your Clera products performing their best.
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