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How to Determine and Address Window Seal Failure

Today’s residential windows provide more than just a scenic view of your yard; they also help boost your home’s energy efficiency. But your windows must be maintained regularly by professional contractors who know how to identify and address common issues. One of these issues is window seal failure, and to determine if this has happened to  your windows, local window replacement service contractor Renewal by Andersen® of Memphis explains what you need to know: 

Window Seal Failure

How Modern Windows Are Made

Older windows were typically made with unsealed single-pane glass. Over time, the glass becomes loose within its frames when the glazing putty cracks or loosens after constant exposure to the elements. The design makes for a window that hardly retains the indoor temperatures and drives up the monthly energy bills. 

Today, most residential windows are sealed with either two or three layers of glass that are separated by a partial vacuum. The vacuum is typically filled with an inert gas such as krypton or argon, turning them into what’s referred to as insulated glass units (IGUs). And depending on the homeowner’s preferences, they can also be coated with a heat-reflective low-emissivity material. This helps slow the heat transfer and keep your home’s indoors comfortable throughout the year. 

Determining Window Seal Failure

Window seals are what keep the gas in the vacuum between the glass panes. If you’ve had them for many years, they can fail due to natural wear and tear. But if you had them installed recently or for only a couple of years, you can assume that there may be a problem with the product or its installation.

Moisture buildup between the glass panes is usually a telltale sign of window seal failure. It won’t be there all time as it comes and goes with the weather, but if left unaddressed, the moisture can accumulate to a point where it becomes foggy and will always be there even under warm weather. Another sign is noticing mineral deposits, grime, and dirt between the panes, which are impossible to clean on your own. If this is the case with your windows, you’re better off replacing them fully as they’ve already lost their energy efficiency.

Renewal by Andersen of Memphis is your best choice for house window replacement. Contact our professional services today at (901) 979-4460 or fill out our convenient contact form!


"The crew that installed my windows and doors was AWESOME this guys rocked they knew their stuff. When I first meet Jackie and his crew he told me that I getting the best windows and doors in the business. So come to find out I got the best installers also this crew went above and beyond. We have 28 windows and our home just got one dam fine face-lift. We have no doubt if you're looking for the best in the market RENEWAL BY ANDERSON is the way to go."

EJ Elkins
Apr 12, 2022

"Great widows. We bought an older home, built in the mid 70's, it had the original widows. They were ugly didn't lock and leaked like a sieve. Our bedroom was always way colder in the winter and way hotter in the summer. The windows have only been in a couple weeks and I can tell the difference. The bedroom is the same temperature as the rest of the house. They look great from the inside and out. Our salesman Phillip was awesome!! The insulation was quick and professional. I have 5 dogs and they were great with them and made sure the dogs didn't get out. They cleaned up everything, we couldn't even tell they had been here. The only thing that was a problem was the time it took to get the windows. Although it wasn't their fault. The shipping ports were closed and they couldn't get all the parts needed. But it was worth the wait. I just ordered new front door and sliding back door from them. Can't wait to get them."

Kim “Grantsmom”
Apr 19, 2022

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