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

What a positive experience during recent renovation project. The sales and installation were done in a timely, accurate, attentive way. I was impressed with the personalized attention I received from an evening call from telemarketers; the sales rep, Dan, that provided the quote; the scheduling and booking department; and the installation crew that did the field work flawlessly. Would highly recommend for windows replacement and plan to use Loyal Seal again for patio door and front door replacement next year. Thank you so much guys.
google review Miri Grondin, door installation
With the windows company that replaced all the windows and doors in our house, but had gone out of business a couple of years ago, we were left with the glass that had a broken seal and thus looked foggy and pink throughout the surface as if being utterly dirty (especially an unattractive look as the windows represent the house from the front of the house). The two doors, leading to the garage and to the outdoors from the mudroom, original to the house, needed a replacement as well. Loyal Seal provided a well-supported on every level service from the inquiry call​​​, to the estimate and measurements, reminders and the actual installation: a polite and courteous​ ​demeanour of all the employees, competent appraisal, followed by expert and clean work made a great impression. We have been through numerous renovations over the past 20 years​​, and had anywhere from mediocre to very bad experiences with the services. Loyal Seal had made the process very enjoyable and exciting. Tatiana and Michael.
google review Tatiana and Michael, Oakville, window installation
They offered me a free estimate on my windows with a guaranteed quote for 2 years, and they even tell me to shop around with the quote because they want me to get the best price. There is no pushy sales and the best thing is that you’re not dealing with contractors directly as they have a separate department for customer service which shows you how much they truly care about their customers! Also, all their products are manufactured here in Canada! If you have any problems with your windows and doors, you should give them a call!
google review En Kuo, North York, window installation
Great quality windows and doors. Service was super friendly and it was done in a quick manner. Would definitely recommend if you’re looking to get any upgrades!
google review Sara Davide, 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.