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1-905-738-1870

Made in Canada for 45+ Years!
We Manufacture, We Install, You Save!
300K+ Happy Customers
4.7/5 HomeStars Rating
Non-Prorated Lifetime Warranty
ENERGY STAR Certified Products
GTA, Service Representatives - Clera Windows & Doors

Gihan Ratnayake

Our local representative has been serving Mississauga and surrounding areas for over 5 years!

1-844-738-7936

Contact us for more information and about a free quote!

Our Local Clera Branch Serves Caledon East

As the manufacturers and installers of all our windows and doors, we stand behind our work.

GTA, Service Representatives - Clera Windows & Doors

Gihan Ratnayake

Our local representative has been serving Mississauga and surrounding areas for over 5 years!

professional window replacement service

We Manufacture. We Install. You Save.

Discover how affordable your new windows and doors can be with our latest promotions.

Get up to 30% off all Replacement Windows and Doors
Enjoy up to $600 per window in free upgrades with our New Brilliance Line
No Interest, No Payments for 18 months!
Get My Free Quote

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Hung Window, Gallery Image - Clera Windows + Doors

Single & Double Hung Windows

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  • Easy-clean tilt function – Easily clean exterior glass from inside your home
  • Space-saving design – Perfect for narrower lots and condo spaces
  • Ultimate ventilation control – Adjust top, bottom, or both sashes to direct airflow
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Vinyl Awning Windows - Clera Windows + Doors

Awning Windows

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  • Superior weather seals – Triple-sealing system creates airtight weather barrier
  • Rain-or-shine ventilation – Top-hinged and opens outward to let air in, not water
  • Break-in resistant – Harder to force open thanks to secure multi-point locking
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High-Quality Windows & Doors

End Vent Slider Windows

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  • Unobstructed city views – Slim frames and large glass panels maximize glass area
  • Dual sliding sashes – Enjoy fresh air from both ends of the window
  • Effortless operation – Smooth rollers allow for seamless opening and closing
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Best Vinyl‍ Double & Single Slider Windows - Clera Windows + Doors

Double & Single Slider Windows

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  • Horizontal sliding – No swing-out clearance needed 
  • Lift out sashes – Easily lift out panels for quick, hassle-free cleaning
  • Sleek design – Clean lines and a minimalist frame for a modern look
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Speciality Shaped Window, Gallery Image - Clera Windows + Doors

Specialty Windows

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  • Custom shapes & sizes – Match door and window style to your home’s aesthetic
  • Light without limits – Brighten hard-to-fit spaces with precision-crafted glass
  • Energy-efficient materials – Tailor-made for insulation and UV protection
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Best Vinyl‍ Bay & Bow Windows - Clera Windows + Doors

Bay & Bow Windows

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  • Dramatic visual impact – Create depth and dimension to any space
  • Extended interior space – Add a cozy nook or built-in bench 
  • Panoramic light & views – Let the outside in with multi-panel layout
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Fixed Windows Installation

Fixed or Picture Windows

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  • Maintenance-free – No moving parts means no fuss, no wear
  • Zero energy leaks – Keep drafts and energy bills down
  • Frameless views – Large glass area for scenic backdrops and natural light
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Contemporary Window Solutions

Casement Windows

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  • Maximum airflow – Hinged on the side and opens outward for full ventilation
  • Tight-locking design – Multi-point locking system keeps out drafts and intruders
  • Sleek crank handle – Easy to open in kitchens or behind furniture
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Steel Security Doors

Steel Entry Doors

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  • Reinforced steel construction – Built for strength, durability, and top-tier protection
  • Smooth, low-maintenance finish – Resists rust, dents, and wear
  • Energy smart – Foam-insulated core helps keep your heating bill in check
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Designing Your Fiberglass Door - Clera Windows And Doors

Fiberglass Doors

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  • Environmentally friendly – Get the look of wood without harming the environment
  • Built for Canadian weather – Stands up to moisture, dents, and daily wear 
  • Superior insulation – Keep your home cozy no matter the weather
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Patio Sliding Doors

Sliding Patio Doors & Garden Doors

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  • Unlock natural light – Expansive glass panels brighten your space beautifully
  • Smooth-gliding operation – Glides open with ease and locks up tight
  • Extend your indoor living outside – Effortlessly blend your home with your patio or garden
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Exterior Storm Doors

Storm Doors

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  • Enhanced weather protection – Shield your entryway from rain, snow, and wind
  • Customization – Available in clear, ventilated, and decorative glass options
  • Secure ventilation – Keep insects out and fresh air in
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Frequently Asked Questions

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Replacement Windows & Doors Caledon East

Replacement Windows & Doors Caledon East

GTA, Service Representatives - Clera Windows & Doors

Gihan Ratnayake

Our local representative has been serving Mississauga and surrounding areas for over 5 years!

1-844-738-7936

Contact us for more information and about a free quote!

Contact Us

Our Local Clera Branch Serves Caledon East

As the manufacturers and installers of all our windows and doors, we stand behind our work.

GTA, Service Representatives - Clera Windows & Doors

Gihan Ratnayake

Our local representative has been serving Mississauga and surrounding areas for over 5 years!

1-844-738-7936

Contact us for more information and about a free quote!

Contact Us

Our Local Clera Branch Serves Caledon East

As the manufacturers and installers of all our windows and doors, we stand behind our work.

Clera Windows + Doors

Brampton, Bolton, Caledon East, Palgrave, Nobleton and Kleinburg Area

Toll Free: 1-844-738-7936
Phone: 1-844-738-7936
Fax: 905-738-0586

Sales: sales@clerawindows.com
Service: service@clerawindows.com

Clera Windows + Doors

Toll Free: 1-905-738-1870
Phone: 1-905-738-1870
Fax: 905-738-0586

Sales: sales@clerawindows.com
Service: service@clerawindows.com

Get a Quote
Best Windows And Doors - Clera Windows + Doors

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
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Limited Time Offer To Upgrade Your Home - Clera Windows + Doors

Windows and Doors Caledon East

Whether you are looking to improve the energy-efficiency, safety, curb appeal (or all three!) of your home through new windows and doors, Clera Windows and Doors, is one of Canada’s oldest and most reputable window manufacturers. We are a family-owned business since 1978 and have gained a reputation for trust and high-quality products that will slash your energy bill while saving the environment through our 40 years of experience in the business. We are certified by CSA, Energy Star, IGMAC and SAWDAC. We are regarded as one of Canada’s best.

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We offer the customer service of a small company with small-town values for which we have won the prestigious HomeStars Best of 2012 and Top Choice Award for best customer service in the industry with glowing customer reviews that we are very proud of. We will manufacture windows to your exact request in our factory. We offer flawless and professional installation from our experts with over 20 years of experience – expertise that is guaranteed through our certified quality program. We offer some of the best financing options around, including 35 percent off on all window and door installations or 35 months to pay without any interest added. We also offer a lifetime warranty that is fully transferable and one of the best in the country.

Customized Windows & Doors In Alliston - Clera Windows + Doors
Invest In Your Home Today - Clera Windows + Doors

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 40 Branches

We have over 40 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.

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ENERGY STAR® Certified

Our hung windows meet Canada's strict energy-efficiency standards. A window from Clera is not only high-quality and durable, but also energy-efficient.

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.

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Energy Star Icon

Energy Star Approved

Effortless Operation Icon

Modern, Contemporary Design with more glass, and less frame

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Better home security

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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!)

Windows in Caledon East

Windows offer great return on investment. In fact, you can gain up to 80 percent of your investment in the added value that windows provide. Moreover, you can amass significant savings through Energy Star products. Our windows are certified by the Canadian Standards Association. They are also tested in laboratory settings with results showing that they are the best windows on the market. The glass is Envirosealed, meaning that the glass provides the best level of energy-efficiency. Our vinyl windows are comprised of pure PVC, a leading choice because it does not rust or corrode. We are committed to creating the highest quality product that will withstand the test of time.

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Window & Door Assemblers - Clera Windows + Doors
Best Vinyl‍ End Vent Slider Windows  - Clera Windows + Doors

Replacing your windows has never been easier: you won’t have to lift a finger. We offer a range of products in any colour you desire and in a range of styles, from classic to modern. They can be customized to have any number of features you want. We offer double hung windows, to end vent sliders to awning windows. They are maintenance free.

Doors in Caledon East

Statistically speaking, burglars are most likely to enter your home through the front door via force. Choosing a high-quality door is of utmost importance when it comes to the protection of your family. This is particularly important for Caledon East residents, where crime rates have increased since 2010. We offer various collections with a range of doors to meet your your particular aesthetic, from the simplicity and minimalist lines of our Shaker Collection, to the bold statement doors of our Prestige collection, to our fibreglass doors that can handle the Canadian climate with ease.

We offer an entirely free estimate.

Vinyl Windows & Doors - Clera Windows + Doors
Bay & Bow Windows - Clera Windows + Doors
Extensive Range Of Vinyl Windows - Clera Windows + Doors
Serving Aylmer For Over 40 Years - Clera Windows + Doors
Professional Installers - Clera Windows + Doors
Meet The Team - Clera Windows + Doors
Best Options For Your Replacement Doors And Windows - Clera Windows + Doors