What is a casement window?
A casement window, also called a crank window, is a type of window commonly used in Quebec in houses, condominiums, apartments, and offices. People like it because it offers a perfect combination of aesthetics, functionality, and energy efficiency. It is designed with one or more sashes that are attached to a window frame with hinges. The sashes open outward to the side by pivoting on these hinges.
What are the features of a casement window?
A casement window consists of a fixed frame and a sash (the glazed part that moves). The sash pivots on a hinge located on the side. When you turn the crank, the mechanism pushes the sash and the window opens outward.
It is often made of PVC, aluminum, wood, or in a hybrid version (e.g., wood on the inside, aluminum on the outside). An important element is the weatherstripping seal: when closing, the window presses against this seal to limit air and/or water infiltration.
Visually, it differs from a sliding window:
- Sliding: the panels slide along a track.
- Casement: a single sash opens like a compact door, but with a crank.
What are the main advantages of casement windows?
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Airtightness and energy efficiency
A casement window closes tightly against its seal. This helps reduce air infiltration, which is very useful in a northern climate like Quebec/Canada. Many models are Energy Star certified. In renovation projects, replacing very old windows can lead to up to 30% energy savings (depending on the condition of the existing windows and the home’s insulation).2. Effective ventilation.
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Effective ventilation
It can open very wide, sometimes close to 90°. As a result, you can quickly ventilate a kitchen, bathroom, or bedroom. You can also “catch” the breeze depending on the direction the window opens.
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Comfortable everyday use
The crank makes opening easier, even for large windows. It’s also practical when the window is behind a counter (kitchen), depending on the layout.
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Durability
A good-quality window, properly installed and maintained, often has an average lifespan of 20 to 30 years.
A crank that rotates on its axis allows casement windows to be opened and closed. Casement windows offer the best protection against water, noise, and air infiltration because they are equipped with a multipoint locking system that compresses the weatherstripping when closed. These characteristics make them a popular choice for improving the energy efficiency of a residential room or an office.
Casement windows are available in different sizes and styles, making it possible to match various architectural aesthetics and design preferences. They are often used in bedrooms, kitchens, and other areas of the home where ventilation and natural light are important.
Elegant and functional casement windows
President Doors and Windows casement windows are carefully designed to offer both exceptional aesthetics and high-level functionality. They are manufactured with top-quality materials that guarantee their durability and weather resistance. In addition, their side-hinged design allows for maximum ventilation and easy access for cleaning.
Would you like to learn more about the possibilities of casement windows for your home or condo? Contact a member of the Président Portes et fenêtres team of professionals by calling toll-free 1 855 218-0627.
FAQs ABOUT CASEMENT WINDOWS
1) What is the difference between a casement window and a awning window?
Casement windows open outward with hinges on the side. Awning windows open outward with hinges at the top (they tilt). Awning windows are convenient for ventilation even when it’s raining. Casement windows often open wider.
2) Can an air conditioner be installed in a casement window?
We don’t recommend it because the opening is not designed for a standard window air conditioner. If you insist, the most common solutions are a portable air conditioner (with an adapter) or a mini-split. These options avoid compromising the window’s weatherproofing and security.
3) Are casement windows safe?
Yes. They can have multi-point locking and close securely on the frame. Safety depends on the model, the type of glass (if necessary), and above all, the quality of installation. Sturdy hardware and proper sash adjustment also improve resistance.
4) How long does a casement window crank handle last?
In general, a crank handle often lasts 10 to 15 years, depending on use and maintenance. If it sticks, creaks, or if the window doesn’t align properly, the mechanism may be at fault. Replacement is often possible without changing the entire window, which reduces costs. Ask an expert for advice. Make a free appointment with one of our window consultants now by filling out our Home Visit Request Form. Or contact us by phone at 855-484-6092.
5) Are casement windows more energy efficient than other types of windows?
Yes, the compression closure creates a very tight seal that limits air leakage, often making them more efficient than comparable sliding or hung windows, especially in harsh climates such as Quebec.
6) Can a casement window open inward for easier cleaning?
In North American homes, most casement windows open outward. However, some specific models are designed to tilt or open inward to make it easier to wash the exterior glass.
7) What are the main advantages of casement windows for a Quebec home?
Casement windows offer excellent airtightness, remarkable thermal insulation, and very effective ventilation when open, which is well suited to Quebec’s harsh winters and hot summers.
8) What are the disadvantages or limitations of casement windows?
They require clearance to the outside (patio, balcony, sidewalk) and regular maintenance of the hardware (hinges, crank) to maintain smooth opening and a good seal.
9) How can I maintain a casement window to extend its life?
Regular cleaning of the frame and glass, lubrication of moving parts, and periodic inspection and replacement of weatherstripping and seals will maintain performance and prevent air or water infiltration.
10) When should you consider replacing a casement window?
You should consider replacing a casement window when it becomes difficult to open or close, when there are drafts, when water infiltration occurs, when there is persistent condensation on the glass, or when you notice a significant increase in heating costs. Ask an expert for advice. Schedule a free appointment with one of our window consultants today by filling out our Home Consultation Request Form.


