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Windows and Doors Mississauga

Premium Entry Doors & Energy-Efficient Windows in Mississauga

Upgrade your home with high-quality entry doors and energy-efficient windows, supplied and installed by GEM Windows & Doors. Since 1961, our family-owned company has been trusted across the GTA for professional installations, durable products, and exceptional service. Whether you need window replacement in Mississauga or a complete entry door installation in Mississauga, our team ensures every project is handled with care, precision, and energy savings in mind.

Proudly serving Port Credit, Streetsville, Erin Mills, Meadowvale, and surrounding neighbourhoods.

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Awards and Recognition

Trusted for Windows and Doors in Mississauga

 

As Toronto’s oldest and most trusted window and door company, GEM Windows & Doors has earned a reputation for excellence across the GTA. Homeowners in Mississauga return to us for reliable window and door installations backed by quality products and outstanding service.

Energy Star: Partner of the year Award 2018
Energy Star: Retailer of the year 2019
HomeStars Best Of The Best 2023
HomeStars Best Of The Best 2022
HomeStars Best Of The Best 2021
Fenestration Review for industry excellence

Featured on the cover of Fenestration Review for industry excellence

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Member of Fenestration Canada, helping set CSA standards for windows and doors

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Services We Offer in Mississauga

Installation

Our certified team provides expert entry door installation in Mississauga and professional window fitting services. From consultation to cleanup, we deliver a smooth, stress-free process.

Replacement

Upgrading your home? Our replacement services in Mississauga help improve comfort, efficiency, and curb appeal. We guide you through product selection and professional installation to ensure the perfect fit.

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Our Products

High-Quality Entry Doors and Windows for Mississauga

We carry one of the GTA’s largest selections of premium products, designed for style, performance, and durability:

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Every product we supply is backed by reliable manufacturers, strong warranties, and ENERGY STAR®, giving you peace of mind with every installation.

GEM’s Price Match Guarantee

The Best Price, Without Compromise

At GEM Windows & Doors, we believe Mississauga homeowners deserve both quality and value. That’s why we offer our Price Match Guarantee:

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  1. Bring us a written quote for an equivalent product and installation.

  2. Our experts will review and compare the specifications.

  3. If they match, we’ll not only meet the price, we’ll beat it by 10% of the difference.

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This ensures you receive the best deal possible without sacrificing expert installation, Canadian-made quality, or the customer care we’re known for.

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Over 60 Years of Quality and Trust

Since 1961, GEM Windows & Doors has been a family-owned business committed to delivering top-quality products and exceptional service. Our Mississauga customers benefit from our expertise, extensive product lines, and one of Toronto’s largest showrooms.

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From entry doors to energy-efficient windows, our solutions are designed to enhance comfort, energy performance, and home value.

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Frequently asked questions

What Customers are Saying

I'm very satisfied with the care and attention that Gem Windows paid in supplying and installing a new door at my son's home recently. You replaced the old wooden door with a new one, it's well finished and very draft proof. An excellent product, well installed, a very good job. Thank you! I will be recommending you.

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Get Started Today

Ready to upgrade your home or business with premium windows and doors in Mississauga?

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