Casement Windows
Outward-opening design for maximum ventilation and a compression seal that gets tighter in the wind. Opens to 90° for easy cleaning and unobstructed views. Engineered for Canadian and American homes.
Why Choose Casement Windows?
Casement windows are hinged on the side and open outward with a crank. When closed, the sash compresses against the frame on all four sides for an airtight seal—and wind pressure can actually improve the seal. They open fully to 90° for maximum ventilation and easy cleaning from inside, with no center rail for unobstructed views. Multi-point locking adds security. Ideal for cross-ventilation, hard-to-reach spots, and pairing with picture windows.
Casement Windows
- Opens fully to 90° for maximum airflow
- Compression seal—wind helps tighten the seal when closed
- No center rail; unobstructed views
- Multi-point locking for security
- Crank operation ideal for hard-to-reach locations
Where to Use Casement Windows
Popular applications for Casement Windows.
Great Rooms & Living
Full 90° open for airflow and unobstructed view; no center rail.
Kitchen
Above sink and counters; crank operation and strong ventilation for cooking.
Bathroom
Ventilation and moisture control; easy to place higher for privacy.
Bedrooms
Secure multi-point lock; open fully for cooling and cross-ventilation.
Gable & Upper Floors
Crank operation suits hard-to-reach and high placements (e.g. gable, second floor).
Dining & Home Office
Clear view and controllable airflow; tight seal when closed.
Design
Available in 14+ colors, glass options (including Low-E), frame options, and grille patterns. Explore our comprehensive range of options to create the perfect Casement Windows for your project.
Exterior Colors
Interior Colors
Engineering & Specifications
VDK Ultra Casement Windows are built to the same high standards—fusion-welded corners, multi-chamber frames, and premium uPVC construction for lasting performance and energy efficiency.
Fusion-Welded Corners
Frame corners are heat-fused into a single, seamless piece — not screwed or glued. This creates an airtight, watertight joint that maintains structural integrity for the life of the window.
Multi-Chamber Frame Design
The frame profile contains multiple hollow chambers that trap air, creating a natural thermal barrier. This design significantly reduces heat transfer through the frame itself.
Premium uPVC Construction
Made from high-quality unplasticized PVC that resists fading, warping, cracking, and rot. Unlike wood, it never needs painting or staining. Unlike aluminum, it won't corrode or conduct cold.
Warm Edge Spacer System
Advanced spacer technology between glass panes reduces condensation at the glass edge and improves overall thermal performance, keeping the interior glass surface warmer in winter.
Technical Specifications
- Frame Material
- Multi-chamber uPVC (vinyl)
- Glass Options
- Double or triple pane with argon gas fill
- Low-E Coating
- LoE-180, LoE²-272, LoE³-366
- Frame Welding
- Fusion-welded corners
- Operation
- Outward-opening, crank operated
- Color Options
- 14+ standard and woodgrain finishes
- Certification
- ENERGY STAR certified
VDK Ultra windows are ENERGY STAR certified for Canadian and American climate zones, meeting the highest standards for energy performance.
VDK windows are backed by our warranty—contact us for details.
Explore Other Window Types
Picture Windows
Expansive, unobstructed views with maximum natural light and the best energy efficiency of any window type. Engineered for Canadian and American homes.
Awning Windows
Top-hinged outward-opening windows you can leave open in light rain. Perfect above sinks, in bathrooms, and as transoms. Built for Canadian and American homes.
Hung Windows
Classic single and double hung windows with inward-tilting sashes for easy cleaning from inside. Precise airflow control and timeless style. Built for Canadian and American homes.
Frequently Asked Questions
Casement windows are hinged on the side and open outward with a crank. They open fully to 90° for maximum ventilation and have no center rail for unobstructed views. When closed, the sash compresses against the frame on all four sides for an airtight seal—wind pressure can even improve the seal. VDK Ultra Casement Windows are ENERGY STAR certified and built for durability.
Yes. Casement windows create a compression seal when closed: the sash presses against the frame on all four edges, minimizing drafts and air leakage. Combined with multi-chamber frames, quality weatherstripping, and optional Low-E glass with argon fill, VDK casement windows deliver strong energy performance and can help reduce heating and cooling costs.
Casements work well in living rooms and bedrooms for cross-ventilation, in kitchens and bathrooms above sinks where crank operation is convenient, in stairwells and hard-to-reach spots, and alongside picture windows in combination units. They are also a popular choice above or beside entry doors.
Yes, we offer free quotes for all our windows. Contact us through our contact form or call us directly to discuss your project and receive a personalized quote.
VDK Ultra Casement Windows are available in custom sizes with 14+ colors (standard and woodgrain), double or triple pane glass, Low-E options, and grille patterns. Contact us for configurations to suit your project.
VDK windows are backed by our warranty. Contact us for full warranty details and terms.
Ready to Transform Your Views?
Contact us today for a free quote on VDK Ultra Picture Windows. Whether you're building new or replacing existing windows, our team will help you find the perfect configuration for your home in Canada or the USA.