First, have a look at the exterior of the window to know the exact condition they are in. If the glazing has a few hairline cracks, you can wait for a while. If the glazing is missing, you may need to reglaze the windows soon. Remove all the operable parts of the windows. Next, remove the bad glazing by chipping off the loose glazing using a knife or a razor. Make sure that you don’t damage the windows by doing this.
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