Casement windows combine timeless design with excellent functionality and energy efficiency. They deliver enhanced ventilation, easy operation, or a sleek, modern look.






Expert Casement Window Installation Services
When it comes to casement windows, WELDA Windows & Doors brings the expertise you need to make the process simple and stress-free. Our team works closely with you to select the right windows for your home, ensuring they not only look great but also meet your energy efficiency goals.
From precise measurements to professional installation, we handle every detail with care and precision. We’re committed to providing durable, high-quality windows that improve your home’s appearance and functionality. Trust us to deliver casement windows that elevate your living space and stand up to Toronto’s weather.
Benefits of Casement Windows:
Energy Efficient
Casement windows are designed to seal tightly when closed, helping to reduce energy loss. This means lower heating and cooling costs and a more comfortable home, regardless of season.
Easy to Operate
Casement windows are incredibly easy to open and close with a simple crank mechanism. Whether you’re airing out the house or letting in a gentle breeze, you’ll love how effortlessly these windows operate.
Low Maintenance
Casement windows are built with durability in mind, requiring minimal maintenance over time. A quick clean now and then is all it takes to keep them looking great and performing at their best.
Enhanced Ventilation
These windows open wide, giving you superior airflow and natural light. Their design allows fresh air to circulate through your space, creating a brighter, healthier, and more enjoyable home environment.
Features & Specifications of Casement Windows
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1
NAFS-22 RATING
- Performance Grade: 70
- Performance Class: LC
- Air Tightness: A3
- Maximum Tested Size: 36" x 72"
- Compliance: E-Star 2020 & NAFS-22 Certified
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2
Enhanced Sightlines
Optimized for a sleek, modern appearance, providing a clearer and more unobstructed view while maintaining structural integrity.
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3
Multi-Point Locking System
Engages at multiple points along the sash, increasing security and energy efficiency. Now improved for smoother operation.
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4
Heavy-Duty Handle
Fold-down handle tucks away to maximize interior space and minimize interference with blinds.
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5
Heavy-Duty Screen Bar
Built with durability in mind, the upgraded screen bar offers increased resistance to denting and warping, extending the lifespan of the screen.
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6
Fusion-Welded Frame
Precision-mitered, fusion-welded construction ensures durability and strength.
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7
Triple Weather Seals
Three layers of sealing for improved insulation and protection, enhancing energy efficiency.
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8
Superior Energy Efficiency
Significantly improved energy ratings, offering better insulation and reducing energy costs.
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9
Customization & Color Options
Available in various color finishes to match your home’s aesthetic:

| CASEMENT WINDOWS SPECIFICATIONS | ||||||
|---|---|---|---|---|---|---|
| Category | Double/Triple Glaze | Code | U-Factor | SHGC | Visible Light Transmission | ER Value |
| Platinum | Double 7/8 | CLR/ARG/LOE180 | 0.27 | 0.48 | 0.53 | 34 |
| Diamond | Triple 1-3/8 | LOE180/ARG/CLR/ARG/CLR | 0.22 | 0.41 | 0.48 | 36 |
| Diamond | Triple 1-3/8 | LOE180/ARG/CLR/ARG/LOE180 | 0.18 | 0.39 | 0.46 | 40 |
| CASEMENT WINDOWS SPECIFICATIONS |
|---|
| Category: Platinum |
| Double/Triple Glaze: Double 7/8 |
| Code: CLR/ARG/LOE180 |
| U-Factor: 0.27 |
| SHGC: 0.48 |
| Visible Light Transmission: 0.53 |
| ER Value: 34 |
| Category: Diamond |
| Double/Triple Glaze: Triple 1-3/8 |
| Code: LOE180/ARG/CLR/ARG/CLR |
| U-Factor: 0.22 |
| SHGC: 0.41 |
| Visible Light Transmission: 0.48 |
| ER Value: 36 |
| Category: Diamond |
| Double/Triple Glaze: Triple 1-3/8 |
| Code: LOE180/ARG/CLR/ARG/LOE180 |
| U-Factor: 0.18 |
| SHGC: 0.39 |
| Visible Light Transmission: 0.46 |
| ER Value: 40 |
How to Operate Casement Windows
Casement windows offer several benefits that make them a popular choice for homes and offices
- Unobstructed Views
Unlike sliding or double-hung windows, casement windows have no center bar or mullions blocking the view.
This makes them ideal for scenic areas. - Enhanced Security
Casement windows usually come with strong locks embedded into the frame, making them more secure against break-ins. The crank mechanism also makes them harder to force open from the outside. - Easy Operation
The crank handle makes opening and closing easy, which is beneficial for hard-to-reach areas, such as above kitchen sinks. Suitable for individuals with mobility challenges. - Variety of Design Options
Available in different materials, colors, and finishes to match different architectural styles. Can be paired with other window types for a customized look. - Better Weatherproofing
The tight seal prevents air and water leaks, making them ideal for areas prone to heavy rain and strong winds.
Other types of windows:
Why Choose WELDA for Casement Windows

Premium Products
Durable, stylish, and energy-efficient windows and doors designed to enhance your home.
Professional Service & Installation
Certified experts deliver a seamless installation experience, paired with personalized solutions tailored to your home and needs.
Strong Warranties
Industry-leading protection for lasting peace of mind.
Fair & Transparent Pricing
Competitive rates with no hidden costs.

Schedule a Free Consultation
Contact WELDA Windows & Doors today to find out how we can help you with your window and door needs.
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