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Window Seal Failure: The 5 Common Causes

Whether you own double hung or casement windows, you’ll always have to make sure that the seal of your windows are intact. Otherwise, heat can escape from your home and allow drafts to enter, causing your utility bills to spike up. With that in mind, it’s important that you learn as much as you can about the usual causes of window seal failures.

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  1. Elements – While window seals are made to withstand the elements, they’re not actually invulnerable. For instance, if your seal faces large volumes of rain on a regular basis, water can easily seep behind it and cause it to lift. This can be problematic as the seal will no longer be in contact with the window frame and may even allow water and cold air to pass through into your home.

  1. Maintenance – Windows will require maintenance every now and then if you want them to last as long, and to accomplish this, they often come with instructions to help owners properly maintain them. Therefore, always make sure that the weatherstripping is properly maintained to prevent any issues with the window seal.

  1. Temperature – Your window is often subject to extreme temperature, and prolonged exposure to heat or cold can cause the window seal to crack, shrink or even sag. This can render its protective capabilities against the weather useless. 

  1. Mold – Surprisingly enough, mold is another reason why your window’s seal may fail. It can destroy its effectiveness, especially if it’s made from rubber so make sure to clean it as soon you spot it with an alcohol-based cleaner or even vinegar to prevent further damage.

  1. Age – Of course, one cannot discount the age of the window as a possible reason why its seal is failing. If your window has some years behind it, it’s possible it has an older method of weather protection that makes it more likely to fail. To get around this, update the weatherstripping of your windows as soon as possible.

For the best vinyl replacement windows, look no further than Renewal by Andersen® of Southwest Missouri. We are your leading provider of door and window installation services. Give us a call at (417) 351-2801, or fill out our contact form to schedule a free consultation.

Reviews

"Excellent service and product! They checked in with me every few weeks while we were waiting for the order. I was impressed with Sam, who measured my windows and headed the installation crew. He was respectful and patient with his team. They cleaned up after themselves. Before the new windows I had huge windows that didn’t open. Now I feel much safer and get better temperatures in those rooms."

Kimberly Kester
Jul 18, 2022

"My experience with Anderson Renewal was amazing! From the first meeting with Miranda to choose my windows and doors to the installation provided by Tim and his crew was a pleasure! I just bought a home built in the 1960's that needed new windows and a new double front door with sidelights. As everyone knows Anderson Windows are great, but it was the people I interacted with from Anderson that made it such a great experience. It took three days for the windows and door to be installed and they "worked" every minute they were here. My huge front door took most of the day to install because they had to put in a new header and other improvements to make it fit! They even put up new drywall on the inside. Many people in the neighborhood have stopped by to comment on my beautiful front door! I think the crew left my house cleaner than it was before they started! Constantly cleaning up after themselves. I am thrilled with my windows and feel lucky to have met the team at Anderson."

Kimberly Wilson
Jul 17, 2022

"Very professional staff . No pressure sales. The job they do is neat and clean, no cleanup left for the owner. Communication is great. Always informed on the status of of your product, AND the tin of cookies you receive afterwards is a pleasant plus."

Peggy Spivy Morse
Jul 13, 2022

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