Signs You Have Drafty Windows

Drafty windows are more than just unpleasant. They often indicate that the window, or at least its seals, are not functioning as they should. Drafty windows can also lead to skyrocketing energy bills and even health issues. In this post, Renewal by Andersen® of Houston discusses the signs of drafty windows to watch out for.

Drafty Windows

Cold Air Near the Windows

If the area near your window is much colder than the rest of the house, you might have a drafty window. Cold air near the window may signal that air infiltration, often due to poor window installation, is allowing colder air to enter the room. It could also be that the seal is leaking air.

Drafty Window Frame

Another classic sign of drafty windows is a cold window frame. While the window glass should feel warm, a drafty window frame will feel cold to the touch. This is due to air infiltration around the edges or a faulty seal.

High Energy Bills

Drafty windows can cause your energy bills to skyrocket. If you see a sharp increase in your energy bills, despite using the same amount of AC, it may indicate drafty windows. Your windows may not be properly insulated and are due for a window replacement.

Fogging Windows 

Fogging or moisture buildup between the panes of your windows is a sign of a faulty seal. If your windows get foggy, it’s likely that air is coming through them.


Condensation buildup occurs when there’s a temperature difference between the inside and outside of your window. When warm air on the inside comes into contact with a cold window surface, condensation forms. This is a sign of a drafty window and may indicate the need for a replacement depending on the age and condition of the window itself.

By recognizing the signs, you can ensure a comfortable, energy-efficient and healthier home. For top-notch window solutions, trust only Renewal by Andersen of Houston. Call us at (281) 547-6177, or fill out this contact form today to learn more about our services!