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What Is a Casement Window? All You Need to Know

What Is a Casement Window? All You Need to Know

What is a casement window? What do they cost? Why don’t more houses have them? If you’re asking yourself any of these questions, you’re in the right place. Read on to learn all you need to know.


Disclaimer: The information included in this post is for informational purposes only and should not be taken as legal, financial, or DIY advice. We highly suggest consulting a professional before attempting any DIY home improvements or repairs.


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When shopping for new windows, one of the first things you’ll realize is that there are countless options to consider. While this is true, casement windows don’t get the attention they deserve. In fact, casement windows are often found at the back of the brochure or in a less-trafficked area on a showroom floor.

Even though casement windows aren’t as popular as other styles, they have a lot to offer. Learning more about them can help you see why this might be a smart choice of window style for your home. And we’ll show you what in the complete guide below.

What Are Casement Windows?

To help answer what is a casement window, an image showing such a window with the panes closed looking out into the forest with orange trees

Elena Elisseeva/Shutterstock

Casement windows have a hinge on one side, which allows them to open like a door. A hand crank is installed inside your home and used to open the window. Screens are optional and can be removed from the interior of your home if added.

Casement windows provide several benefits. Knowing what these are can help you decide if they are suitable for your home. Some of the top benefits include:

Energy Efficiency

Casement windows are considered extremely energy efficient. A factor attributed to this is that the windows close tightly and feature several locking points. These features ensure a weather-tight seal and help eliminate air leakage. This is especially helpful if you live in cold-weather environments.

Easy Installation

If you’re installing windows over counters, cabinets, or other hard-to-reach locations, casement windows are a great solution. The crank is often at the bottom of the window, making them easier to unlock and open than a traditional double-hung or slider.

Natural Ventilation

It’s possible to hinge casement windows at almost any angle. That flexibility in hanging the windows also allows you to control the airflow coming into your home. This allows you to take full advantage of the wind.

Natural Light

Many homeowners like the idea of a picture window but don’t like that it can’t be opened and closed. With casements, you have the full sunlight exposure of picture windows while also adding the ability to open and close them.

These windows come in an unlimited number of sizes and colors, ensure they coordinate with the rest of your home – on the interior and exterior.

Casement vs. Other Window Styles

Before diving in and choosing casement windows for your home, it’s a good idea to learn about the other window options and styles available.

Slider Windows

Slider window on a patio looking out over the clouds for a piece on what is a casement window

Svetlana123/Shutterstock

Modern slider windows feature a movable sash that goes from side to side on a track. If the sliders collect debris in this track, it can be challenging to open or close them. Also, slider windows can be noisy. With casement windows, there is no track to collect dirt, and their operation is hushed.

Single- and Double-Hung Windows

Image of a double hung window against the exterior of a home with vinyl siding

Tokar/Shutterstock

Another trendy option is single- and double-hung windows. These windows move up and down and are sometimes difficult to open and close because you are fighting gravity. Installing casement windows does not present these same issues.

This is because the sash is hinged to open the window like a door. Also, if the lifting device for single- or double-hung windows malfunctions or breaks, your window will not remain open.

Casement Windows

Photo of a casement window partially opened with its crank extended

Lost_in_the_Midwest/Shutterstock

When it comes to a weather-tight design, airflow, and amazing views, there is no question that casement windows offer all this and more. The window seal meets the sash straight on, ensuring an impermeable seal, even in adverse weather conditions.

Another appealing factor is how easy it is to clean casement windows. Because they open outward, it’s easy to reach around and clean both sides of the window. This is especially helpful when the windows are installed on a second or third story.

Frequently Asked Questions

As we’ve explained, casement windows have a lot to offer. While this is true, you might still have a few questions about this style; we’ve rounded up the most-asked questions and used our experience to answer them thoroughly.

Where Are Casement Windows Typically Used?

Casement windows are great options for superior ventilation, and the places in your home where you can maximize that ventilation are the perfect spots for their installation. You can also install them over obstructions, such as the kitchen sink and appliances.

How Expensive Are Casement Windows?

Usually, the cost of casement windows will be more than what you pay for double-hung windows. In some cases, casement windows can be twice as much. Most people think their higher cost is because of the mechanical components needed to open and close the window and lower demand from consumers.

Are Casement Windows Still in Style?

People often think of hinged casement windows as being outdated or old-fashioned. While this is a typical thought, it isn’t the case. Today, more and more homeowners are opting for casements.

What Is the Main Drawback of Casement Windows?

It’s not possible to install window air conditioners in casement windows. That’s because the windows are cranked out and open from your house. Also, you can’t always fit casement windows with screens or storm shutters.

So, What Is a Casement Window?

To help answer what casement windows are, two of them in action on a multi-level home

Sompetch Khanakornpratip/Shutterstock

If you’re in the market for new windows, casements should be on your radar. This window style offers a lot of benefits and can help you create the well-ventilated space you desire.

When you are ready to purchase this window style, be sure to work with the professionals to ensure you get the correct size. You can also choose from a selection of colors, which means they’ll look original to the house.

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