Are Casement Windows More Energy Efficient?

As fuel costs continue to gouge wallets across the country, more homeowners are exploring ways to make their homes more energy efficient.

With windows accounting for up to 30% of heat gain or loss in a home, it makes sense to choose an energy-efficient option when it’s time for window replacement. Casement windows are a popular choice.

But are casement windows more energy efficient?

As the leading installers of high-quality windows and doors in Colts Neck, NJ, we can authoritatively tell you that the answer is yes. 

Why Casement Windows Are More Energy Efficient

Quality casement windows are more energy efficient because of their unique features. Below are some of them:


If you’re asking, “Are casement windows more energy efficient?” because you’re considering single-pane slider windows, you should know that the answer is a resounding yes.

Casement windows are better than conventional single-pane windows because they are double- or triple-glazed. This means they have two or three panes of glass, allowing them to keep in conditioned air better overall.

Gas Buffer

Casement windows feature non-toxic gas between two or three glass panes. The gas, usually krypton or argon, slows heat transfer through and from the window. It’s one of the reasons these windows are popular among people thinking about updating or replacing their windows.

Warm Edge Spacers

The edge spacers in casement windows help keep the gas buffer from leaking. They also keep the glass panes from touching while contributing to the windows’ energy efficiency due to their low heat transfer rate.

Low-E Coating

Many casement windows feature low-emissivity coating, which helps reflect heat instead of allowing it to pass through the window. Windows featuring this coating also block UV rays, reducing the strain on your HVAC systems and keeping your furnishing from fading.

Tighter Seals

From the window sash to the locks, manufacturers use tighter seals on every part of high-quality casement windows to ensure higher energy efficiency ratings.

Make Your Window Energy Efficient With Professionally Installed Casement Units

Now that you know the answer to “Are casement windows more energy efficient?” it’s important to work with an experienced company you can trust for your window installation project.

Whether you’re adding windows to a brick house or replacing the windows in your single-family home, we can help.

Call Majestic Exteriors today at 848-863-6775 to schedule a consultation with the window installation pros in Colts Neck, NJ.