+ Windows

Windows collection

Discover our selection of vinyl windows, guaranteed to suit every style and budget. Manufactured locally, we pride ourselves on quality and durability.
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Proudly Canadian

Our windows are manufactured locally in Ontario, meaning we get to pass the savings on directly to you. Quality and affordability come together at Quantum.
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+ Doors

Doors collection

From entry doors to patio doors, storm doors and more, discover the difference quality makes. Browse our selection of factory direct doors and save!
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Incredible Prices

Our doors are manufactured by us ensuring that we can stand behind the quality of our products. The best prices for the best quality doors - guaranteed!
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By Phone

Give us a call and have all your windows and doors related questions answered by professionals. We can set up a complimentary in-home estimate as well! Call (905) 695-5100

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Fill out our simple form and we'll get back to you in no time! Simply fill in your information and one of our representatives will be in touch as soon as possible. Click Here

How Long Will it Take?

We do our very best to drop by your home within 24 hours. There, we take detailed measurements and provide you with an accurate, no obligation estimate!
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If you are looking for a reliable, affordable windows and doors replacement company in the Greater Toronto Area, there is truly no better choice than Quantum. With years of experiencing servicing homes across the GTA, we make it exceptionally easy to instantaneously breathe new life into the overall aesthetics of your home. With our spectacular selection of high quality replacement windows and doors, we are confident we have something to suit the tastes of any homeowner and compliment both the exterior and interior design of any home. We also offer flawless, reliable installation. For the most trusted windows and doors replacement company in Toronto, look no further than Quantum.


Quantum’s spectacular selection of products is unrivaled by any other windows and doors replacement company in Toronto. Regardless of what your aesthetic taste is, we can customize products that are perfect for you, regardless of your budgetary constraints. From our beautiful bay and bow windows to our simple casement windows, from our stunning entry doors to our luxurious French patio doors, Quantum truly has something for every customer. Someone from our team of experienced design professionals would be happy to walk you through our range of customizable, high quality products to find something ideal for you. There is truly no other replacement windows and doors company in the Greater Toronto Area that offers a range of high quality products quite like Quantum.


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In addition to our spectacular selection of high quality, customizable products, Quantum is the Toronto windows and doors replacement company that also offers reliable, flawless installation. Having your new replacement doors and windows properly installed is key to enjoying their numerous benefits, such as energy efficiency. With Quantum, we get the job done efficiently and reliably, so you can enjoy our products as soon as possible and with little disruption to your every day life. We pride ourselves on providing each of our customers with an enjoyable experience from start to finish, which is just one more reason why we are the most trusted windows and doors replacement company in Toronto.


Our stunning, locally manufactured Toronto replacement windows and doors are also remarkably energy efficient. This means that they keep the energy inside your home, and outside drafts from entering. Energy efficient replacement windows and doors are especially effective in Toronto, a city that experiences extreme weather conditions. In the long run, our products also help to save you money on heating and cooling costs. The energy efficient properties of our replacement windows and doors in Toronto is just one more reason why they are a sound investment for any homeowner.


Contact Quantum for your complimentary same day quote and find out how incredibly affordable it is to outfit your home with stunning replacement windows and doors. Because our products are locally sourced, they are remarkably affordable. They are made of high quality materials such as fiberglass, so you can be sure that they will look remarkably pristine for years to come. We are confident that with our affordable prices and range of customizable products, we are the Toronto windows and doors replacement company that has something to suit every customer.


Contact Quantum today and find out why we are the most trust windows and doors replacement company in the Greater Toronto Area. With our exceptional selection of high quality, fully customizable products and our reliable team of installation experts, we ensure that replacing your Toronto windows and doors is a simple and enjoyable experience from start to finish. Let our design experts walk you through our spectacular selection of products to find something to perfectly compliment the look of your home. With our years of experience, we are adept at making your experience a breeze from start to finish. Choose Quantum as your Toronto windows and doors replacement company. We make instantly revitalizing the look and feel of your home a simple and enjoyable experience. Contact Quantum today for your customary, same day quote.


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