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Window Condensation: Everything You Need to Know

It’s common for windows to “sweat” or fog up when the temperature changes. This process is called condensation. While it can sometimes indicate damage to the window, in other cases condensation is harmless.

Window Condensation: Everything You Need to Know

Renewal by Andersen® of Oklahoma, your window and doors replacement expert, discusses further:

Exterior Condensation

It can be surprising to see condensation outside of your windows especially if they’re relatively new, but this is actually a good sign. This takes place when the air outside is more humid and warmer than the temperature of the window glass. When fog and water droplets form on the window’s exterior, it means that your windows are preventing heat from transferring indoors, thus keeping your home well-insulated.

However, it’s still best to check the frames and sills for drafts. If there are gaps between the window and the frame, you may detect condensation on your walls. This can cause water damage, which is why you should address it immediately.

Interior Condensation

Condensation that occurs on the inside of your doors or windows can be problematic. While it’s typically caused by steam from cooking or showering, it implies that you have high humidity levels in your living space. It’s also possibly a sign that your windows are leaking.

This can result in serious issues when left neglected. For one, moisture can encourage mold and mildew growth. Furthermore, when moisture stays trapped inside your home, it can deteriorate your wood and metal furnishings, and eventually compromise your home’s structural integrity. Be sure to seek the help of a professional to make prompt fixes.

At Renewal by Andersen of Oklahoma, we can help you keep your windows in top condition. You can also count on us for quality French doors. Give us a call today at (405) 212-5936 or fill out our contact form to request an estimate. We serve Oklahoma City and surrounding areas.


"Our new windows are absolutely wonderful! We were pleased with the entire process and the product and would recommend Renewal by Andersen to anyone."

Mike & Kathy, Edmond| OK
November 5

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