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1-905-738-1870

Introducing our new Brilliance line, with up to $600 PER window in FREE upgrades!

Available for a limited time only!

No Interest and No payments for 365 days from installation! OAC.

45+

Years of Family-Owned Experience

300,000+

Happy Customers

45+

Consultant Locations right here, in Ontario

Introducing Brilliance by Clera

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.

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.

Brilliance Line Upgrades

Brilliance Line Upgrades

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

Double Low E Glass

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

Hardware upgrades

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

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

Dissimilar glass thicknesses

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

Upgraded screens

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

Get Your Free Estimate

We Manufacture, We Install, You Save

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.

See Financing Options

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?

The Clera Care Guarantee Logo

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.

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Certified Technicians

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

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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 Icon

Non-prorated Lifetime Warranty

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

Energy Star Icon

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.

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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.

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.

Contact Us
Energy Star Icon

Energy Star Approved

Effortless Operation Icon

Modern, Contemporary Design with more glass, and less frame

Better Home Security Icon

Better home security

Noise Reduction Icon

A quieter home; improved noise reduction from the outdoors

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No Maintenance Icon

No maintenance: vinyl windows are virtually maintenance-free

Pilkington Low-e Glass Technology Icon

Pilkington Low-E Glass Technology, engineered specifically for Canadian climates

Structural Integrity Icon

Wet-glazed frames and sashes on all windows; the ultimate in protection against water and wind infiltration, with added structural integrity

Improved Ventilation Icon

Triple-fin weatherstripping with built-in anti-microbial properties, meaning no mould and better air quality

Pure Virgin UPVC Icon

100% pure virgin UPVC, providing protection from fading

Exceptional Durability Icon

Stronger hardware and structural integrity thanks to integrating galvanized steel (allows for larger, more spectacular views!)

Over 45 Sales and Installation Offices Across Ontario

Find Your Nearest Consultant
Over 40 Sales And Installation Offices - Clera Windows + Doors

Free Factory Upgrades When You Replace Your Windows With Clera

Maximize Your Savings

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Get up to

$600 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!

Learn More
Celebrating 45 Years - Clera Windows And Doors

Designing Your Dream Window is Easy!

Step 01

Choose your Style

Step 02

Choose your Colour

Step 03

Choose your Grill (Optional)

Step 04

Choose your Glass

Step 05

Dreams Come True
Choose your Style
*Options are samples only*
Choose your Colour
*Options are samples only*
Choose your Grill
*Options are samples only*
Choose your Glass
*Options are samples only*
How do we reach you?
Roger that, Houston
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Choosing custom windows and doors has never been easier

Our customization process allows for a high level of personalization so each window and door fits your home perfectly. Whether it's the material, size, shape or any other aspect, we ensure that every detail is just right!