We all want our homes to be as energy-efficient as possible. Improving that efficiency helps the environment and brings down the monthly energy bill. The first ways to improve efficiency that spring to mind revolve around how often the air conditioner runs, how long the lights remain on in your home, or the number of electronics plugged in simultaneously. However, one method often overlooked during the process, and it involves making sure your windows are energy efficient — which is easy to do with Window Guardians’ window replacement services in Yardley and beyond. But what exactly makes a window energy-efficient? 

Panes of Glass  

Most modern windows utilize two to three panes of glass. The spaces between panes allow for pockets of air to form and insulate the home. Heat passes through these spaces at a slower rate, and homes stay warm during the winter and cooler during the summer. For most climates, two panes are usually sufficient to see a significant difference in your energy compared to triple-panes. Triple-pane windows make more sense in more extreme conditions with harsher winters. 


Spacers separate and hold the panes of glass in place. The edges of each window are the most susceptible to heat and cooling loss over time. Paying attention to the spacers and the material used in making them can help determine the energy efficiency of your windows.

Gas Fill

In recent years, strides have been made in energy efficiency by filling the space between the glass panes with an inert gas, such as Krypton, to help slow heat loss. Heat energy passes more slowly through these inert gasses than regular air, thus improving the overall efficiency of your windows. 

Glass Coatings 

The coating applied to the glass itself can significantly affect the overall efficiency of the window. Low emissivity, or Low-E, coatings are a microscopic metallic layer applied to the glass surface. This layer reduces heat gain and reflects the temperature of the home back inside. Low-E glass coating is a versatile choice for increasing energy efficiency in different climates due to its ability to retain heat and provide reliable UV protection. 

Are you looking for energy-efficient window installers in Yardley or the surrounding areas? Contact the team at Window Guardians today to get a free quote!