Casement Windows

Casement WindowsCasement windows are a timeless window solution, hinged on one side and designed to open outward using a crank or lever handle. Known for their sleek design and exceptional functionality, casement windows are a favorite among homeowners who value natural airflow, energy efficiency, and a clear, unobstructed view. When fully opened, they catch side breezes and direct fresh air into the room—making them one of the best-performing window styles for ventilation. In addition to their excellent airflow capabilities, casement windows offer a tight seal when closed, helping to reduce drafts and enhance energy efficiency. Their adjustable opening angle allows for precise control of ventilation, while the outward-swinging sash adds a touch of elegance and ease to any space.

Casement Window Types

  • Single Casement Window – Simple yet effective, the single casement window features one operable sash that swings outward from a side hinge. This versatile style suits nearly any room and offers effortless operation combined with a clean, modern look.
  • Double Casement Window – Also known as French casement windows, this style features two sashes hinged on opposite sides that open outward from the center. Double casement windows provide a wide, uninterrupted opening—perfect for maximizing airflow and creating a more expansive view of the outdoors.
  • Triple Casement Window – For even greater flexibility, triple casement windows combine three sashes within a single frame. This configuration offers impressive ventilation options and a striking visual presence, ideal for larger wall openings or contemporary architectural designs.
  • Custom Casement Window Designs – Bring your unique vision to life with custom casement windows tailored to your specifications. Choose from various sizes, shapes, frame materials, finishes, and hardware options to create a look that complements your home’s style and character. Whether you’re renovating a heritage property or designing a modern masterpiece, custom casement windows offer the creative freedom you need.

Enhance Your Home With Style and Functionality
From classic charm to modern versatility, casement windows provide the perfect balance of aesthetics, performance, and personalized design. Contact us today to explore our casement window options and find the perfect fit for your home.

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Customer Reviews

Results are fantastic

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

Windows look incredible

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

A great experience

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

Highly recommend!

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