What You Need To Know About Window Seal Repair

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What You Need To Know About

Window Seal Repair

And What Causes Seals To Fail

What Causes Window Seals To Fail?


Window seal failure can occur in both hot or cold temperatures, this is because both expansion and contraction can contribute to seal failure. Extreme heat can cause expanding pressure between two window panes, leading to seal failure. On the other hand, cold temperatures can cause shrinking, which can also lead to window seal failure. It is important to watch for signs of seal failure in any extreme temperatures, whether hot or cold.

Windows facing to the West or South are more prone to failure, as direct sunlight exposure causes the sealing agent to deteriorate. Because of this, it is important to consider investing in a warranty for windows facing these directions, if not for all of your windows.


“Has My Window Seal Failed?”


A window seal failure can easily go unnoticed, but not forever. Eventually, the broken seal will make itself apparent, often with one of these symptoms:

  • Condensation between window panes
  • Fogging or “hazing” between window panes
  • Mold growing between window panes
  • Glass breakage due to the failed seal
  • Visible cracks in the seal itself


The Expense Of Window Seal Failure


Window seal failure does not only lead to unattractive fogging and condensation in a window, it also detracts from the insulating ability of a window, causing a rise in utility expenses.

With home maintenance and repair, it is always best to address a small issue before it erupts into a more expensive and urgent problem. As soon as you notice any of the symptoms of a blown window seal listed above, call a professional to come inspect the damage.


“Should I Call A Professional?


Detecting the degree of failure in a window seal can prove tricky. Window seal repair itself can prove even trickier. With a pry bar, hammer, and some silicone caulk, you might be able to provide a temporary repair to your broken window seal. However, it might end up unsightly. Silicone caulk will also permanently secure shut the a sliding window, and you also cannot paint over the caulk.

The longest lasting and most attractive way to repair a window seal is to have a qualified professional come out to inspect and repair your window.

Although window seals themselves are not replaceable, you can oftentimes replace the glass itself, instead of jumping to a full window replacement. It is best to call someone who understands the construction of the window, and all aspects of possible damage and necessary repairs, to determine the best course of action for restoration.

Another good reason to call in a qualified contractor is that they will be able to tell you whether or not your window is under warranty. If it is, then a good contractor will also walk you through the warranty process for having your window replaced.


If you suspect that the seal on your window has been compromised, don’t wait to act. Take the first step in the best direction by finding a qualified, local window contractor who has your best interest in mind.



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