Door and Window Care: Signs Seals Have Failed

Door and Window Care: Signs Seals Have Failed

May 28, 2019

Even high-quality doors and windows are not immune to the effects of constant wear and tear. When the time comes, you have to check if the seals in your entry doors and windows are still in good shape. Here are some of the most common signs that you have to watch out for according to Renewal by Andersen® of Milwaukee.

Fogging on Glass

When you see signs of fogging inside the glass of your double-paned windows, it’s a sign that it can no longer insulate as efficiently as before. The fogging is caused by water droplets caused by temperature imbalance and the influx of water vapor, most likely coming through small gaps along the pane’s seals.


Entry doors and windows must maintain an airtight seal to make sure that outdoor air doesn’t leak in and affect indoor temperature too much. One way to check if the seals are intact is to moisten your hand and run it along the edges of the panes (where the seals are). This will help you feel if air is blowing through even hard-to-see gaps in your windows and doors.

Bending or Warping

Because temperature changes can cause different materials to expand or contract, warping along door or window panes can sometimes occur. In severe cases, it can be drastic enough that it can compromise the structural integrity of the material. Make sure you have warped windows or doors replaced or repaired ASAP.

Higher Energy Bills

Some signs of failing seals are not immediately visible. Since your home’s HVAC will need to use more energy to regulate the temperature indoors, this will result in an increase in your home’s electric bill. Pay attention to your monthly bills and see if a sudden increase in costs may be caused by a failed seal. If that’s the case, find an expert in patio doors to have the issue resolved ASAP.

Make sure your windows and doors remain properly sealed. Renewal by Andersen is the leading windows company in Milwaukee and nearby areas. You can call us at (262) 522-3034 or fill out this contact form to request a free estimate.

Hear From Our Customers

Jason and Brett did an awesome job installing our doors. We had separate installers a month earlier for our windows who also did a fantastic job. They were all very professional and cleaned up almost better than the area looked before the installation! Since these were both jobs that took more than one day the installers were great at keeping us informed on the status of where the project was at along the way.

This was a great crew to work with. Both the original install manager we worked with (Jay) and the install team (Daniel, Mason, Tony, Ethan, and Jose). Everyone was very professional and knowledgable. They answered all my questions and the end result on the house is great. In 3 days they replaced an old bay window with a new bay window, a set of french doors on the patio with a sliding patio door, and our old front door with a new front door and storm door.

I cant express how happy we are with choosing Andersen for our window installation. Our sales representative was knowledgeable with product and answered any questions we had without hesitation. I did also fill out a survey that was sent in an email, but sadly I failed to personally name the two gentlemen that performed the actual installation. Barrett and Francisco were our guys, and let me tell you, they were outstanding!!! They did Excellent work and were professional as well as efficient and made this a smooth, none evasive process for us. I strongly recommend this company and these installers to anyone in need of windows!!! My husband and I could not be more pleased we chose Andersen for replacing our windows!!!

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Since its founding in 1977, the Alliance to Save Energy has been a leader in energy efficiency policy and advocacy. Over the years, the Alliance’s programs and priorities have evolved as U.S. energy efficiency policy has grown.