Plus up to $5,000 in Enbridge Rebates
Our windows are engineered and tested to perform in Ontario’s toughest weather — from freezing winters to humid summers.
Our local installers have over 10 years of hands-on experience and deliver expert craftsmanship on every project.
Every window comes with a lifetime warranty — real protection, no fine print.
We cut out the middlemen, offering factory-direct prices plus access to exclusive Gov’t and Enbridge rebate programs.
With over 20 years of manufacturing experience, DES Windows produces and installs premium, energy-efficient windows made for the Canadian climate.
By selling directly from our factory, we remove middlemen — delivering better prices, faster turnaround, and a lifetime warranty on every product. Choose trusted Ontario-made quality and factory-direct value with DES Windows.
At DES Windows, we proudly stand behind every window we manufacture. Our lifetime product warranty covers all materials and components — for as long as you own your home.
No hidden clauses! No fine print!
Just genuine protection and long-term peace of mind!
Awning windows are a stylish and practical window type, hinged at the top and opening outward from the bottom—much like the canopy of a tent. …
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Casement windows are a timeless window solution, hinged on one side and designed to open outward using a crank or lever handle. Known for their …
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Casement-Fixed windows are a stylish and practical window type, hinged on one side and designed to open outward using a smooth-turning crank or lever. Known …
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Picture windows are large, fixed panes of glass that do not open, offering an unobstructed and uninterrupted view of the outdoors. As non-operable windows, they …
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Single-slider windows are a smart blend of style and practicality. Featuring one fixed pane and one that slides horizontally, they offer effortless operation and controlled …
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Double-slider windows are a perfect blend of modern convenience and timeless design. With two operable sashes that glide horizontally, these windows offer unmatched flexibility for …
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Single Hung Window is a timeless, space-saving solution that combines classic aesthetics with practical functionality. Featuring two sashes within a single frame, only the bottom …
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Double Hung Window is a timeless and versatile window style designed for both functionality and elegance. Featuring two operable sashes that slide vertically within the …
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Transform your home with the timeless beauty and practicality of Bay windows. These stunning architectural features not only enhance curb appeal but also expand your …
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Transform your home with the timeless beauty and practicality of Bow windows. These stunning architectural features not only enhance curb appeal but also expand your …
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Shaped windows are custom-designed architectural elements that break free from the standard rectangle. These unique windows come in a variety of forms—arches, circles, triangles, trapezoids, …
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I was nervous about replacing all our windows before winter, but DES made it stress-free. They stuck to the timeline, explained everything in detail, and the results are fantastic. Our energy bill has already gone down.
Mark B., Mississauga
We got quotes from three companies, and DES was the most transparent and reasonably priced. The installers were courteous, efficient, and clearly knew what they were doing. Our new windows look incredible.
Elena D., Scarborough
DES Windows installed our new front entry door and patio sliders — the quality is top notch, and the curb appeal is amazing. Installation was quick and hassle-free. A great experience from start to finish.
Jason T., Etobicoke
Absolutely thrilled with our new windows from DES! The team was professional, fast, and left our home cleaner than they found it. Noticed a huge improvement in warmth and sound insulation right away. Highly recommend!
Sarah M., North York
We’ll help you choose the best energy-efficient windows for your home, calculate available Gov’t and Enbridge rebates, and provide a personalized offer — all for free.