Option 2: IGU / Glass Replacement (The Cost-Effective Choice)
Note: For very small issues on new windows, the original manufacturer often covers repair under warranty.
Window seals generally have a lifespan of 10 to 20 years, but they can fail prematurely. Common causes include:
Many window companies offer lifetime or 20-year warranties on glass seals. Always check if you are covered before paying for a repair out of pocket. broken window seal exclusive
Many high-quality windows come with a 10- to 20-year warranty that covers seal failure. Always check with your manufacturer before paying for repairs out of pocket.
Every two years, check and update the exterior sealant where the window frame meets the house, and especially between the glass and wood frame.
: Continuous cycles of expansion and contraction due to temperature fluctuations weaken the sealant over time. Solar Exposure Option 2: IGU / Glass Replacement (The Cost-Effective
If the window wasn't set correctly or the sealant was applied improperly, premature failure is likely.
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Modern energy-efficient windows are . They consist of two or more panes of glass separated by a spacer, with the space between them filled with insulating gas (like Argon or Krypton). The entire unit is sealed at the perimeter to keep this gas in and moisture out. Always check if you are covered before paying
IGUs typically utilize a dual-seal system: a primary seal (usually polyisobutylene or PIB) that blocks moisture vapor and gas transfer, and a secondary seal (often silicone or polysulfide) that provides structural strength.
Ignoring a broken window seal is not recommended, as it causes several issues:
What is your window showing? (Is it just lightly fogged, or are there heavy stains?)
Before you assume the seal is gone, rule out the imposters.