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The Best Way to Deal With Mold Growth on Your Window Casings

Mold can grow on almost any surface or environment that has constant moisture. Your windows are designed to keep the moisture from forming in your home’s interiors, but over time, they can start to fail and affect your window casings. There might be mold growth already if you notice a bit of discoloration on your windows! Fortunately, proper cleaning should take care of your mold problems, but this should be done thoroughly to prevent any further mold growth.

Window Casings

So, what’s the best way to clean your window casings without voiding your window warranty? Trusted window replacement contractor Renewal by Andersen® of Montana shares some useful tips:

Identifying the Mold Growth

You won’t immediately notice any mold growth on your windows at first, because they typically start to appear on the bottom of your windows. Specifically, mold will start to grow at the joint between the window sash frame and the glass pane. It can sometimes be the same color as the window frame which is why it can be difficult to notice unless looked at closely.

While noticing only minor discoloration on your windows is noticeable, it won’t be immediately harmful to your indoor air quality. However, don’t assume that the mold seen on one window won’t be found on the others throughout the rest of your home. Accumulated mold growth can impact your indoor air quality and cause frequent allergies and other health problems. So, if you spot any mold growing around your picture windows, make sure to clean them out thoroughly!

Cleaning Tips to Remember

Make sure that you wear safety goggles, gloves, and a dust mask to keep yourself from accidentally breathing the mold spores while cleaning. The floor under the window you’re cleaning must also be covered by a cloth or tarp to catch the falling mold. Use a spray bottle to dampen the moldy window casings to prevent them from spreading in the air while you get rid of them. Apply a few drops of dish detergent with some warm water in a small bucket then dip in a clean rag or some paper towels before using them to clean the mold off the surface. Make sure to rinse the casings properly with clean water and dry them thoroughly.

Prevention Tips to Consider

A dehumidifier helps in lowering your indoor air quality’s high humidity levels during the winter months. Make sure that the exhaust fans are running properly in your kitchen and bathroom as they always have high amounts of humidity that can cause mold to form if left unchecked. It’s also important to clean your home’s interiors regularly, especially the kitchen, bathroom and bedroom. These rooms will have more dust buildup than any other area in your home, so it helps that they’re vacuumed, wiped down and dusted regularly to keep mold from forming.

When it comes to quality casement and sliding windows, you can always count on the products and services offered by Renewal by Andersen of Montana. Contact our professional services today at (406) 259-3944 or fill out our convenient contact form.


"I highly recommend Renewal by Andersen. We were treated well and everything went smoothly from start to finish. The company kept in contact with me before, during, and after the installation and let me know what to expect. I'm in love with my new windows! I will be using this company again when we refinish our basement. "

July, 21

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