Celebrating 25 years · Veteran-owned since 2001
Call Now(314) 370-7897Free Inspection
Windows2 min read

How to Check if Your Window Seals Have Failed

A window's seal will eventually fail. Here are tips on how to check if your seals are failing from a top home improvement contractor.

Close-up of condensation and grime between window panes, a sign of failed window seals

Your window seals are important in keeping your home insulated and comfortable. Over time, however, they can start to fail. Here are some of the ways to tell if your window seals are already showing signs of deterioration and what you can do about it.

Clean the Glass First

One of the first things you should do if you think your window seals have failed is to clean the glass. If the seals are still intact, then the glass should be clear. If the seals have failed, however, you will see condensation or frost buildup between the panes of glass.

Look for Distorted Glass

Glass panes that look distorted when seen from the curb is also an indication of window seal failure. This happens because the sealant no longer holds the glass in place, causing the panes to warp or bulge.

Check for Spotty Condensation

Another sign of failed window seals is spotty condensation on the glass. This happens because the seals are no longer keeping moisture out, and it can start to build up between glass panes.

Causes of Seal Failure

There are several reasons for window seal failure. The most common reason is age. Over time, it starts to degrade and lose its effectiveness. Exposure to sunlight and extreme temperatures can also cause the seals to break down. Whatever the cause, broken seals reduce the windows’ capability to keep the interiors comfortable and insulated.

Fixing a Broken Window Seal

If your window seals have failed, there are a few methods you can use to try and fix them. One is to clean the glass and sealant with a mild soap and water solution. This can sometimes remove any buildup that is causing the seals to fail. Another method is to use a hairdryer or heat gun to warm the sealant gently. This can help it to re-adhere to the glass.

Window Replacement a Better Alternative

Seal failure can also mean that your windows are nearing or already past the end of their life span. In this regard, you’ll want to have them replaced entirely with newer, more energy-efficient windows. At Exterior Building Solutions, we offer top-quality replacement windows made from the best materials on the market. Additionally, we have a skilled and experienced team ready to make the necessary upgrades to your home’s windows. To further increase your home’s curb appeal, value, and energy efficiency, let our team help with your window replacement project.

Call us at (314) 470-8783, or fill out our contact form to request an estimate. Our Missouri service areas include Arnold, MO, and the rest of Jefferson County.

Windows

What Is A Hopper Window?

alt=”hopper window half-open installed in a cozy, well-lit basement, with outside greenery in the…

Windows

How Much Should You Spend On Replacement Windows?

Replacement windows typically cost around $700, but they can range anywhere from $671 to $1,387 per window, including materials and labor.\* Whether you want to improve the appearance of your house or save money on your…

Windows

What to Know Before Replacing Your Windows

A window replacement is a great way to improve your home’s aesthetics and increase energy efficiency. If you are planning to replace your windows, there are a few factors to consider first. As a home improvement…

LET’S BUILD SOMETHING LASTING

Your property. Our priority.

Start with a conversation. We’ll help you find the right solution.

Get a free inspection