Replacement Windows and Doors in Mississauga

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Replacement Windows and Doors in Mississauga

GTA Service Representatives - Clera Windows & Doors

Kyle Dias

Our local Mississauga team has been serving surrounding areas for over 45 years!


Contact us for more information and about a free quote!

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Our Local Clera Branch Serves Mississauga

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

GTA Service Representatives - Clera Windows & Doors

Kyle Dias

Our local Mississauga team has been serving surrounding areas for over 45 years!


Contact us for more information and about a free quote!

Contact Us

Our Local Clera Branch Serves Mississauga

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

Clera Windows + Doors

Mississauga and Surrounding Areas

Clera Windows + Doors

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


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Best Windows And Doors - Clera Windows + Doors

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

Replacement Windows and Doors in Mississauga

Clera Windows + Doors is a family-operated company that builds high-end furniture crafting, with custom windows and replacement doors as our main focus. Since it was founded in 1978, Clera has been perfecting its services to become the “go-to guy” for Mississauga, Ontario in terms of windows and doors installation and replacements.

Clera is not a second-rate reseller – we build our own products in our own facilities, therefore keeping the production cost at a minimum. This way, the clients of Clera Windows + Doors will get to enjoy premium quality products at a fair price. For greater energy efficiency as well as a boost to the exterior value and aesthetic appeal of your home or business, consider upgrading with Clera Windows + Doors.

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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.

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!

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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.

Energy Star Icon

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

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!)

Professional Windows and Doors Mississauga

Homeowners in Mississauga are lucky. They have the best possible windows and doors on the market readily available for installation by our expertly trained team. From start to finish, Clera’s team of professional replacement windows and doors crew offer only the best service – which can be seen in our multitude of online reviews.

Recognized for our loyalty and commitment to customer satisfaction by HomeStars, Clera is a top window and door manufacturer and installer in Mississauga. From upgrading to energy-efficient windows in order to reduce your heating and cooling costs, to a more general home consultation to assess ways to reduce maintenance and upkeep, our team members know the best way to make this happen.

The best part is, when you buy our windows or doors, we can guarantee that you will have the ultimate satisfaction with our lifetime warranty policy. This policy covers all of our custom vinyl windows down to the smallest components. So, if you are not satisfied with what we deliver, just contact us and we’ll be more than happy to fix it!

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

Mississauga’s Leading Replacement Windows and Doors Group

At Clera Windows + Doors, we offer various customizable options for you to pick for your replacement doors or new windows in Mississauga. We realize that each individual client has their own tastes and selections, especially when it comes to their front door and patio doors. That’s why we care so much about providing unique products that meet and exceed our clients’ desires. We give you the freedom to craft your products as you please.

High-Quality Doors and Windows Service You Can Trust

At Clera Windows + Doors Mississauga, we design, fabricate, test, and install all of our windows and doors to the highest standards. With a large collection of pre-fabricated designs as well as a host of customizable options available for any style, it will be hard to find a better window retailer in Mississauga, Ontario. Our limited lifetime warranty and professional installers know just what it takes to satisfy our customers – great products, great service, and great products – and we are proud to deliver on these every time.

In addition to the standard styles, our new windows and replacement windows also come with a low profile, high-profile, bay or bow. The colours of the windows are also customizable, and our latest colour retention technology makes sure that they won’t fade away.

Vinyl Windows & Doors - Clera Windows + Doors
Bay & Bow Windows - Clera Windows + Doors

We also take great measures in delivering the best custom-made doors to our clients in Mississauga. Both our steel and fibreglass doors have numerous styles to choose from. The quality and the attention to detail that we put in our doors installed is unmatched.

Our professional service is also available online. Through our website, you can speak with our designer to customize your orders as you see fit. We will guide you through an easy-to-use free tool that will take you step-by-step through the process. First, you select a grille, then the glass type, then the colours for your windows. There are over a thousand possible combinations for you to choose from; whether you prefer something more simple or flamboyant, our designers will seamlessly guide you through the process so you can be satisfied with the windows or doors that you pick.

Vinyl Windows and Doors Installation

Clera Windows + Doors offers nothing but the best vinyl products out there. We chose vinyl for its durability, lightness and its economical advantage.

The first advantage to vinyl is its durability, meaning it is able to withstand extreme weather conditions. It is also very lightweight, assisting in easy installation. Lastly, it is a very cost-efficient material that is easy to maintain, resulting in our products being highly affordable for our customers.

All these components considered, vinyl windows will make your Mississauga home fresh and clean at a very reasonable budget.

All of Clera’s products are crafted with a high R-value, making them highly energy efficient in reflecting the heat waves. In this regard, our technicians are trained in accordance with the Canadian Standard Association (CSA). Therefore, they are capable of meeting any of our consumers’ requests.

With over 40 locations across Ontario, we are able and ready to satisfy our customers with the best windows and doors installation service that we can.

Extensive Range Of Vinyl Windows - Clera Windows + Doors
Serving Aylmer For Over 40 Years - Clera Windows + Doors

Serving Mississauga for Over 40 Years

Clera Windows + Doors have built their reputation for over four decades as the best replacement doors and windows company in Toronto, Mississauga, and the GTA. We are a family-owned company, and since 1978, our doors and windows are on a mission to beautify Canadian homes from the inside out.

With over 40 branches that spread across Ontario, we are able to provide our window and door installation services anywhere across the province. We have served the demands of over 250,000 families and have cemented our position as the most sought after windows and doors company in Ontario.

Our goal is to sell more smiles than furniture, meaning we wanted to deliver the best windows and doors in Mississauga and we wanted to sell them at a reasonable price. Our knowledgeable team consists of the best technicians, craftsmen, and installers out there. We stand by the quality of our products – from the moment it leaves our workshop to the moment it arrives at your front door.

Our products are Energy Star Certified, meaning that our windows and doors are highly energy efficient and provide large-scale energy cost savings. Our windows and doors must undergo a strict factory test to ensure they can endure the intense winters in Canada. With that, we can guarantee the quality of our windows and doors.

Meet the Team at Clera Windows + Doors in Mississauga

As a family-oriented enterprise, we focused our products more on the aspects of affordability and quality. Every single door we sell at Clera Windows + Doors has been designed, fabricated, and tested by our professional team to ensure superior quality for the customer. Our expert installers take this a step further by making sure the job was done right from the start to finish.

We offer every client a free consultation where we can guide you through the process of crafting your desired windows and doors. So, if you are looking to replace your old windows or doors, don’t hesitate to call us toll-free or visit us at your nearest Mississauga location and we’ll do our best to help!

Professional Installers - Clera Windows + Doors
Meet The Team - Clera Windows + Doors
Best Options For Your Replacement Doors And Windows - Clera Windows + Doors