Name: Windows and Doors
Brand: Clera Windows + Doors
Rating: 4.7 (2557 reviews)

Clera Windows & Doors is Canadian through and through.

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.

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Introducing Brilliance by Clera

We’ve taken 50 years of manufacturing expertise and poured it into the Brilliance Window. It’s the best window we’ve ever made, and the most upgraded on the market.

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With best-in-class insulation values and upgrades across every key component of the window, you’re going to be blown away by the beauty and value the Brilliance line will add to your home.

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Brilliance Line Upgrades

Frames are infused with groundbreaking technology, improving window insulation values by 25%!

Double Low E Glass improves thermal insulation, enhancing comfort and energy efficiency

Hardware upgrades improve ease of operation and locking functionality, allowing for Awning sizes up to 60’ x 52’

Brilliance Line Upgrades - Clera Windows

UV Toughcoat Black is 7x stronger with a beautiful, gently textured finish

Dissimilar glass thicknesses improve soundproofing, up to 3 STC points!

Upgraded screens improve air flow, reduce water build up, and brighten views

A window has five major components: the frame, the glass, the hardware, the screen, and the finish.
And guess what!? We’ve upgraded them ALL to make the best window ever

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Why Choose Clera

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?

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Learn More

Over 45 Years of Experience

With over 45 years of experience, we have earned a reputation as one of Canada's leading window and door manufacturers and installers.

Certified Technicians

You can trust our team of factory trained technicians to install your new windows perfectly—our A+ BBB rating is no accident!

Serving Ontario With over 45 Branches

We have over 45 branches across Ontario, which means that we're always close by when you need us.

Non-prorated Lifetime Warranty

Whenever anything goes wrong with your windows, we'll take care of it for you—no questions asked.

ENERGY STAR® Certified

All of our windows meet Canada’s strict Energy Star standards. A Clera window is not only high-quality and durable, but also super energy-efficient.

We Manufacture and Install So You Save!

With Clera handling the entire manufacturing and installation process, we can offer you competitive prices allowing you to save money.

Reasons to Love
our Products

Clera Windows + Doors is a reputable vinyl window manufacturer in Ontario with a history of dependable and high-quality products. Our superior materials and cutting-edge technology ensure durability, energy efficiency, and style. We offer customizable styles and colors, as well as superior security features and noise reduction technology to provide the best possible product attributes for your home.
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Our team manages every stage of your replacement project, from start to finish. We work closely with you to understand your specific needs and preferences, and use our extensive experience and knowledge to deliver a solution that exceeds your expectations. Trust Clera Windows + Doors for exceptional service and expertise for your home renovation needs.

Energy Star Approved