Serving GTA for Over 35 Years

Welcome to Fortress Windows & Doors Inc.

Fortress Windows & Doors Inc. has been a trusted name in Southern Ontario for over 35 years, providing exceptional quality windows and doors. Renowned for their commitment to superior craftsmanship and outstanding customer service, Fortress Windows & Doors Inc. ensures that every product meets the highest standards of durability and aesthetic appeal. Their longstanding reputation across Southern Ontario is a testament to their dedication to excellence and customer satisfaction.

KNOW MORE ABOUT US

Our Featured Replacement & Installation Services

Color Chart for Your Windows, Doors and Gutters

Color palette with various shades of neutral and bold colors, including beige, gray, brown, red, and green.

For more information, Google Gentek World of Color.

THAT'S NOT ALL ...

Why Fortress Windows & Doors Inc. Is Trusted by Many for Windows & Doors Replacement & Installation Services?

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OUR PEOPLE

Everybody has heard that there is no "I" in TEAM. We recognize the importance of everybody on our team, the value they bring with the right attitude, and their many years of professionalism.

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BEST PRICES

Warren Buffett says there is one thing more important than price, and that is: VALUE. To buy based on price alone is rarely a wise thing to do.

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OVER 35 YEARS EXPERIENCE

Some people say they have 20 years of experience when, in fact, they only have one year of experience 20 times. We at Fortress are dedicated to embracing the latest technology and installation processes, and our clients benefit from that focus.

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WARRANTY

Our warranty, bar none, is the absolute best warranty in the industry: why? Because we care about you, and we want you to know that we are a company of high integrity!

LEARN MORE

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WE GIVE BACK

We are dedicated to giving some of our profits to Sick Kids Hospital and Princess Margaret Hospital.

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LICENCED AND INSURED

These are critical when having anybody work at your home or business.

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EASY FINANCING

 Financing available OAC.

WHY CHOOSE FORTRESS?

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We have high-quality products that are CSA Certified and Energy Star-rated as well.

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Our workmanship is amongst the best in the industry.

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We have been awarded the prestigious "Best of HomeStars" award every year since 2014

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Our warranty is the absolute best and most comprehensive in the industry guaranteed.

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We genuinely care about you and value our customers.

Logo for Neat+: Shield with leaves, teal square, and white text
LoE 180 ESC Glass logo on a shield shape. Includes text and Canadian maple leaf.
Logo for LoE²-272 glass, featuring overlapping shield shapes in gold, black, and silver with glass squares.
Logo for LoE3 366 Glass. Shield shapes, orange and black. Text and the glass illustration are green.

⭐⭐⭐⭐⭐

"Richard and his team were great installing windows and doors for our sunroom. Highly recommended their services. Pricing was fair and the team are very friendly. You can trust them and their work."


— Elvie C.

⭐⭐⭐⭐⭐

"I was very happy with the windows installation from Fortress. They were prompt, professional and a pleasure to work with. I recommend them. Thank you for the great work!"


— Sheri I.

⭐⭐⭐⭐⭐

"I had a fantastic experience with Richard ane his crew. They are very detail oriented and committed. They were all very communicative during the project. Richard also helped us a lot with our CGHL application after the project was done. I highly recommend them."


— Negin S.

⭐⭐⭐⭐⭐

"Richard and his team were great installing windows and doors for our sunroom. Highly recommended their services. Pricing was fair and the team are very friendly. You can trust them and their work."


— Elvie C.

⭐⭐⭐⭐⭐

"I was very happy with the windows installation from Fortress. They were prompt, professional and a pleasure to work with. I recommend them. Thank you for the great work!"


— Sheri I.

⭐⭐⭐⭐⭐

"I had a fantastic experience with Richard ane his crew. They are very detail oriented and committed. They were all very communicative during the project. Richard also helped us a lot with our CGHL application after the project was done. I highly recommend them."


— Negin S.

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Need more information? Call (416) 291-5795 to speak with one of our experts.