+ 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

Get it Online

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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Replacing your windows is an excellent and affordable way to give your Toronto home a facelift while improving the interior comfort of your home. Quantum Windows and Doors is the best windows replacement company in Toronto. In addition to boasting a huge selection of windows in a wide variety of styles, our professional team of windows installation experts ensures that your windows are installed efficiently and effectively. When you choose Quantum as your windows replacement company in Toronto, you can be confident that replacing your windows will be a simple and enjoyable experience.


Windows replacement in Toronto is a simple way to update the entire look of your home. Our wide variety of windows ensures that there is something to suit every Toronto homeowner’s taste and budget. Whether you are looking for simple portrait windows or classic bay windows, Quantum will replace your Toronto windows with something reflective of your personal taste. Our incredible selection of windows are all fully customizable, so you can be confident your windows perfectly suit your home specifically.


What truly makes Quantum stand apart from any other windows replacement company in Toronto is our incredible team of window installation experts. Quantum ensures that your windows replacement process is easy and effective. Expert windows installation ensures that your windows provide a tight seal against unwanted air infiltration. This keeps your home cool and comfortable in the summer and warm and cozy in the winter months. You won’t believe how easy the process of replacing your windows is when you choose Quantum as your windows replacement company in Toronto.


Contact the Toronto windows replacement experts at Quantum to learn more about how easy it is to replace your Toronto windows. Our incredible selection of windows ensures that we have something to suit any taste and our expert team of windows installers replace your windows efficiently and effectively. Contact Quantum today for a free quote on Toronto windows replacement.


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