Can I repair a window with a broken seal?

If your windows are old enough, then it will not be superfluous to check the integrity of the seals installed in them.

It is quite normal that, as such structures are used, their sealing elements crack, deform, and because of this, the windows cease to perform their proper functions. Determining that the seals are to be replaced is quite simple - you need to check whether condensate is collected in the area of ​​the double-glazed windows. If we are talking about windows equipped with a pair or three double-glazed windows, they have higher reliability, so if one seal fails, you will not notice anything, and condensate will not manifest itself even with an abrupt change in temperature.