Toronto’s #1 Windows & Doors Specialists

Over 80,000 Greater Toronto Area home owners chose us for quality windows and doors since 1998. Get a quote today.
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Delivery & Installation

Fast and clean installation by professional technicians

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Energy Efficient

Reduce your bills by 25% and soundproof outside noise

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Product Warranty

Reliable windows & doors with limited product warranty

Join over 80,000 customers in GTA

The initial estimation visit was the best such experience I had so far – to the point, reasonable choices, helping me set priorities on pain points, select models based on my requirements, explained new technologies with pros and cons, offered the option to repair instead of replace where applicable, and set a requested installation date. Installation itself completed smoothly, no impact to the rest of the house, very clean and thorough work, they answered to questions and let me inspect the work at the end. Would definitely recommend and will hire Loyal Seal for future work.
google review Sanda, Mississauga, window installation
Tried to get another well known and advertised company to come out and give me a quote but they never called back. Loyal was there in no time to give me an estimate and we signed a contract. Work was done on time, neat and appears to be of good quality. I am totally satisfied and as a footnote the installation contractors had no problem with me hovering as they did the work…lol
google review Steven, Brampton, window installation
Gave us fair price, had windows made within 3 weeks and installation was done in one day the guys cleaned up after and took all old ones away great service
google review Chris, Mississauga, window installation
Amazing company! The quality of the windows and doors are good Would highly recommend it to anyone who is looking to replace or upgrade their doors or windows
google review Jasper Subido, window-door installation

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Premium Windows & Doors at Affordable Prices Since 1998

With over 20 years of experience in the windows and doors industry, Loyal Seal Windows & Doors Inc. is one of Canada’s leading windows and doors suppliers. Loyal Seal carries a wide range of quality windows and doors systems.

When you choose windows, you want quality, beauty, and economy. Choosing Loyal Seal for your home means choosing the highest quality materials and installation service. It means being pleased with your beautiful windows and doors for years to come.