




Clera Windows + Doors proudly serves all Mississauga neighbourhoods and surrounding communities, including City Centre, Cooksville, Erin Mills, Port Credit, Streetsville, Lakeview, Lisgar, Malton, Meadowvale, and more.
Contact your local Clera representative for a complimentary consultation on fully customized windows and doors in Mississauga.
Our local representative has been serving Mississauga and surrounding areas for over 5 years!

Discover how affordable your new windows and doors can be with our latest promotions.
Built locally in Ontario, Clera's energy-efficient windows and doors are engineered to withstand harsh Mississauga weather and block noise from its bustling city streets. Custom-fit to your home, the windows and doors Mississauga homeowners trust from Clera are designed to perform just as beautifully as they look.
For 45 years, we've manufactured our products to meet ENERGY STAR® standards, installed by certified professionals, and backed by a fully transferable lifetime warranty. Enjoy flexible financing, expert service, and peace of mind that lasts for years to come!
At Clera Windows + Doors Mississauga, we design, fabricate, and install premium windows and doors in-house. From modern windows to custom entry doors and patio doors, our expert team delivers high-performance products built for comfort, efficiency, and long-term value. Complete your door and window replacement project with Mississauga's top window company today!

Vinyl windows designed for energy efficiency, durability, and seamless window replacement in Mississauga homes.
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Secure, stylish front doors customized for curb appeal, insulation, and long-lasting door replacement performance.
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Smooth-sliding patio doors Mississauga homeowners trust to maximize natural light while improving insulation, security, and everyday usability.
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For over 45 years, Clera Windows + Doors has been one of the trusted window manufacturers Mississauga homeowners rely on for consistent quality, competitive pricing, and professional installation services. Our end-to-end support includes new windows and entry doors, designed and manufactured at our GTA facility, flexible financing options, and a lifetime warranty.
Get a free, no obligation quote for door replacement and window replacement in Mississauga today and experience the difference in simple, stress-free home improvement with Clera.

With some of the highest ratings for customer satisfaction, it's clear why Clera is Ontario's most awarded window company!
9.2/10
on HomeStars
16x Homestars Winner
We make your door and window replacement project simple from start to finish. From designing custom energy-efficient replacement windows to the professional installation of your replacement doors, Clera's process is backed by a commitment to exceptional service.
The cost of replacement windows in Mississauga typically falls between $800 and $4,000, depending on type, material, size, and complexity. Because Clera is a factory-direct window manufacturer, you save by buying directly from us—no middleman markups. We provide free, no-obligation quotes for every window and door installation project to ensure you get the best value for your budget, with transparent pricing on durable, energy-efficient vinyl windows made right here in Ontario.
Clera is one of Ontario's most established window manufacturers, family-run since 1978. We design, build, and install our own vinyl windows, ensuring total quality control from start to finish. Our products feature energy-efficient glass, superior security, and customizable designs. Because we sell factory-direct, Mississauga homeowners get exceptional craftsmanship, performance, and long-term value backed by a lifetime warranty and decades of proven customer satisfaction.
Yes! Clera offers flexible financing options to make upgrading your Mississauga windows and doors easy and affordable. Whether you're replacing a few units or renovating your entire home, our financing plans help spread out the cost of your investment. Speak with our team to explore available payment options and enjoy energy-efficient, beautifully designed windows today.
Absolutely. Our team offers year-round window installation Mississauga homeowners can take advantage of. Clera's certified installers ensure every window or door fits perfectly and performs reliably, whether it's the peak of summer or the middle of winter. With locally made products built for Canadian climates, you can trust us to deliver precision, comfort, and durability in every season.
When it comes to elevating your home's curb appeal and property value with new windows and doors, Mississauga residents can put their trust in Clera. Because we design, manufacture, and install every product ourselves, Clera Windows + Doors stands out for quality craftsmanship, high energy efficiency standards, long-lasting performance, and consistent customer satisfaction.
The search for the best windows and doors Mississauga homes deserve ends at Clera. Contact us today to schedule your free consultation!
