Thank you! Your submission has been received!
Oops! Something went wrong while submitting the form.

Over $325 per Window in Free Factory Upgrades

We're Extending Our Sale, Don't Miss Out!

Plus 50% Off all Window and Door installations.

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


Years of Family-Owned Experience


Happy Customers


Consultant Locations right here, in Ontario

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.

Certified Technicians Icon

Certified Technicians

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

Location Icon

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.

Save Money Icon

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

View More Icon

View More

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

Thank you! Your submission has been received!
Oops! Something went wrong while submitting the form.

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!

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
Your submission has been received!
Oops! Something went wrong while submitting the form.