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1-905-738-1870

Get 50% off all Window + Door Installations in Ontario

Winter Sale

+ No Interest and no payment until April 2025, OAC*

Free Factory Upgrades When You Replace Your Windows With Clera

Maximize Your Savings

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Get over

$325 per Window

in FREE factory upgrades

With our wide range of ENERGY STAR products, you can be sure to save big on your next dream project!

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Celebrating 45 Years - Clera Windows And Doors

6 Great Reasons to Choose Clera Windows + Doors in Ontario

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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Canadian Ownership

Celebrating 45+ years of serving Canadians.

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Free at Home Consultation

No pressure, just expert advice and a straightforward estimate.

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Buy Direct!

We manufacture & install so you save!

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Lifetime Warranty

Non-Prorated, Fully Transferrable Warranty

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Most Awarded Company

For Windows + Doors by HomeStars, 16 times.

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3 Best Rated

Awarded one of the Top 3 Best Windows + Doors Companies.

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Completely Custom

Our lineup is entirely custom, ensuring you get the perfect windows and doors for your home.

Windows

New windows make your home brighter and safer while boosting its curb appeal. Whether you’re looking to make your home stand out on the block or just get more natural light into your indoor spaces, replacement windows are a worthwhile investment—especially when you choose the best products from Clera in ontario. Get replacement windows in a style you’ll love. From fixed to sliding, awning and casement windows, bay and bow windows to specialty custom windows, Clera has a wide range of styles for every home.
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Doors

First impressions are powerful—make a grand entrance with a new exterior door from Clera. New doors are a safe and reliable investment for homes in Ontario. They add character, keep undesirables out, and protect your family from the elements. Get the peace of mind you deserve when you install one of our many customizable offerings. We offer enduring exterior door systems made from steel or fiberglass, as well as custom sliding patio, gliding french and storm doors. All are ENERGY STAR® approved, feature high-quality hardware and combinations of panels and glass designs.

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Ontario's Preferred Choice for High-Quality Windows & Doors

We’ve served the GTA area for over 45 years, outfitting more than 300,000 homes with windows and doors built to last.

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