When the seal fails on double-pane windows, they fog between the glass. Replacing just the glass unit saves the frame.
In this article
What causes fog
Failed seals let moisture between panes.
Glass only
Keep the frame and replace the unit.
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Measuring
Precise sizes for the new glass.
Turnaround
Explain the time to order glass.
Warranty
Check manufacturer warranties first.
Common mistakes
Wrong measurements, damaging frames and not checking warranties.
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Frequently asked questions
Do I need a new window if the glass is foggy?
Often not. If the frame is in good condition, replacing the insulated glass unit can fix the fog for less than a full window.