Get up to 30% off your entire order, AND a free upgrade to our Brilliance line | LIMITED FALL INSTALLATION SPOTS — BOOK NOW
Get up to 30% off your entire order, AND a free upgrade to our Brilliance line | LIMITED FALL INSTALLATION SPOTS — BOOK NOW
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!
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.
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.
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.
Shop Patio Doors
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
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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.
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!
