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Why Are My Windows Rotting? Here’s Everything You Need to Know About Window Rot

The windows in your home are an integral part to the overall efficiency and function of your home. When you suspect your windows have fallen victim to wood rot, you need to act quickly to minimize damage and get your windows back to being as productive as possible. But first, what exactly is wooden window rot? How is this happening? Most importantly, how do you fix it? Fortunately, APCO has all of the answers you need!

What Causes My Windows to Rot?

Mostly to blame are tiny fungal spores that attack the parts of the wood that makes it strong. Fortunately, these spores aren’t always active, and rot damage doesn’t occur overnight. In order for the fungi to grow and begin digesting wood, these spores need adequate amounts of water and high humidity. When the moisture content of the wood in your home is coupled with the relatively high humidity, a perfect storm is created for rot.

How Do I Check for Window Rot?

As a general rule, you’ll be able to tell if wood is rotted by the feel. Healthy wood feels dry and sturdy, and rotted wood feels soft and spongy. Additionally, keep a lookout for discoloration. This is another sign of fungi and rot. Here are the particularly vulnerable areas of your window that are most susceptible to window rot.

  • Outside trim/brick mold
  • Window sill
  • Window frame
  • Window sash

Checking your windows regularly, about twice a year, will keep you one step ahead of wood rot. If you do come across window rot, it could be a serious issue. Rotten wooden frames can begin to fester mold, thus creating an unhealthy environment for you and your family. Additionally, left untreated, the wooden rot will only get worse and spread, which will impact the area all around the window as well. It only gets more and more of a hassle and more unsafe the longer a window rot issue is ignored.

What Do I Do If I Have Window Rot?

If you have window frames (or sashes) that are rotting, you absolutely need full-frame window replacement. A full-frame window replacement is the best option for several reasons:

  • The performance of your windows
  • The structure of your home (the area around your windows)
  • The health of your family and guests

The team at APCO Windows are trained professionals who can recognize the signs of rotting and will be able to advise you on the best time to replace your windows. If you’re looking to get new wood windows, we recommend Marvin Wood Windows for their high quality. Learn more about our wood window options here.

Who Do I Call to Replace My Windows?

APCO Windows, of course! APCO was founded more than 50 years ago and has been a leading home improvement contractor serving Columbus, Ohio and the surrounding area ever since. We improve everything we touch, and have been providing your neighbors and fellow homeowners throughout Ohio with outstanding products and service.

We offer the best window products and high-quality window installation services throughout the following cities and their surrounding areas: Bexley, Columbus, Dublin, Gahanna, Grove City, Lewis Center, Pickerington, Powell, Reynoldsburg, Upper Arlington, and Westerville.

For a quote or to schedule service for the best window installation in the Columbus area, contact us today online, or by calling 614-254-5489!



* A minimum purchase is required. The discount applies to the retail list price and is not available on all products. Valid for a limited time and only for homeowner replacement customers who purchase APCO products for their residence and have them installed by APCO via the same contract. Not valid with any other offer or promotion. Repairs/handyman service, repairs to existing products including parts, and James Hardie and Mavin products excluded. Prior sales excluded. Other restrictions may apply. Loans provided by GreenSky (1797 Northeast Expressway NE Suite 100 Atlanta, GA 30329) on approved credit, repayment terms vary from 24 to 132 months. 16.93% fixed APR, effective as of July 1st, 2014, subject to change. Interest is billed during the promotional period, but all interest is waived if the purchase amount is paid in full within 12 months. There are no required minimum monthly payments during the promotional period.
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