Schedule a Free Consultation

4 Ways to Address Window Condensation During Winter

Window condensation is a common problem many homeowners face during the winter months. It happens due to the extreme differences between indoor and outdoor temperatures. If not addressed right away, it can lead to mold growth around the unit and distortion of the window’s frame finish.

Window Condensation During Winter

Adding ventilation can solve the issue of winter window condensation. Here are some of the things you can do:

1. Open Your Windows

Opening your windows is a great way to solve your moisture problem in your home. You don’t have to keep them open for a long time; five minutes is enough to introduce fresh air and take out warm, moist air that is trapped inside your home.

2. Utilize Exhaust Fans

Excess moisture in your home is produced in your kitchen and bathroom. To prevent the windows in these areas from fogging up, make sure the exhaust fans are turned on, especially if you are cooking food or taking a shower or bath.

3. Adjust the Humidifier

Humidifiers help regulate indoor humidity levels in your home. They are either standalone systems or can be integrated into existing HVAC units. If you have one, be sure to turn it down so it will release less moisture in the indoor air and reduce some condensation.

4. Invest in Better Windows

If you are planning to replace your old, inefficient window units, choose those with higher R-values. These replacement windows can handle humidity better and keep condensation from forming.

Whether you are looking to renovate your home or replace windows that are giving your trouble, Renewal by Andersen® of St. Louis has you covered. Our team of factory-trained experts has worked closely with thousands of homeowners in the local area, putting together window replacement projects that lead to more energy-efficient, beautiful and valuable homes.

To learn more about our replacement windows and doors, give us a call at (314) 983-9977, or fill out our contact form to schedule a free consultation. We serve homeowners in St. Louis, MO, and the surrounding communities.

Reviews

"Have nothing but great things to say about the window installation done today by John Hutchinson with Renewal by Andersen! He was friendly, personable and professional and did a great job installing. He did a great job of putting down roller pads and tarps with next to zero clean up. Would highly recommend them for any window replacement needed!"

Mark V.
Jun 26, 2025

"We had our new Renewal by Andersen windows installed on June 5th & 6th, 2025 and we LOVE them! The quality, beauty, and functionality are best-in-class! The whole experience from dinner presentation at Lazy River Grill, the initial in-home sales consultation and measurement, the regular communications from the salesman and concierge, and the installation team’s professionalism and skills made the process so seamless. This is the second home we have opted for Renewal windows and doors and have been delighted both times! Thank you Renewal by Andersen STL! "

Jeff C.
Jun 7, 2025

"I had an excellent experience with RbA STL. Our designer, Courtney, was great and the finished product is awesome. The installation was easy and the gentlemen left our home cleaner than they found it upon entering. I would recommend RbA STL - you’ll get tired from their constant contacts, and that’s a GOOD thing!"

Jeramy D
Jun 3, 2025

View All Reviews