Aluminum Casement Windows
A casement window is hinged on one side and swings outward. It opens and closes with a crank or Easy-Slide Operator. OTEC offers various types including triple casement windows, French casement windows, and models with blinds. Our aluminum casement windows can be fully customized in color, size, lattice, and glass options.
What Are Casement Windows?
A casement window is a type of window that is hinged on one side and opens inward or outward, typically operated by hinge mechanism. It provides excellent ventilation and allows for unobstructed views when fully opened.
PA’s casement aluminum windows are known for their energy efficiency, as they create a tight seal when closed. They are commonly used in both residential and commercial buildings.
View More Aluminum Casement Window Series
Our aluminum casement windows are adaptable any project. We have frame solutions for new and existing construction.
- Description
- Performance
- Colors
- Hardware
| Profile Thickness | 1.6mm |
| Opening Way | Outward Opening / Awning |
| Handle | Handle in Black and Sliver |
| Hinge | GU Hinge |
| Lock Point | Black Two Point Lock |
| Window Type | Casement Window | Window Opening Style |
| U-value (Differ by Glass Types) | 1.1-2.8 W/m²K | Casement Window |
| Water Tightness | 700 Pa | |
| Wind Load Capacity | 5000 Pa | |
| Noise Reduction | ≤ 38 dB | |
| Aluminum Anti -fall Rope Bear Weight | 150 KG |
*The performance of the window depends on the type of glass used and the frame material.
| Hardware Name | Casement Window | Window Opening Style |
| U-value (Differ by Glass Types) | Laminated Glass , Triple Glass,Low-E Glass, and Reflective Glass | ![]() |
| Handle | Fingerprint Handle/Password Handle/Key Handle | |
| Hidden Accessories | Hidden Accessories For Awning | |
| Heat Insulation | Insulation Cotton |
Why Choose Aluminum Casement Window?
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Excellent ventilation: free to open and close, allowing full utilization of side winds.
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Energy efficient: tightly closed to minimize energy loss.
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Clear view: large glass panels provide an unobstructed view.
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Enhanced security: Built-in locks make it difficult to be opened by external forces.
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Easy to use: knob operating system, easy to open and close.
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Versatile design: a variety of styles and materials to adapt to different home styles.
FAQ about Aluminum Casement Windows
What are the advantages of aluminium casement windows?
Aluminium casement windows are known for their durability, lightweight design, and excellent thermal performance. They provide superior weather resistance, making them ideal for various climates. Additionally, aluminium is a low-maintenance material that resists rust and corrosion. The wide opening angle of casement windows allows for maximum ventilation and clear views.
What are the disadvantages of aluminum window frames?
While aluminium window frames offer many benefits, they also come with a few disadvantages. They can conduct heat and cold, potentially reducing energy efficiency unless they are thermally broken or have additional insulation. Aluminium frames can also be more expensive than other materials, and their appearance may not offer the same aesthetic warmth as wooden frames.
What is the downside of casement windows?
Casement windows may require more maintenance than other window types, as the hinges and hardware can wear out over time. Additionally, because they open outward, they can be obstructed by nearby objects, such as plants or outdoor furniture, limiting their functionality in certain areas. In some cases, they may also be less secure than fixed or sliding windows if not properly locked.
Are aluminium casement windows energy efficient?
Yes, aluminium casement windows can be energy-efficient, especially if they feature thermal breaks or double-glazed glass. The casement style also provides a tight seal when closed, reducing drafts and improving insulation. Adding energy-efficient glazing can further enhance their thermal performance.

Casement Window
