Q: I've read your recent column about windows and have some related questions. I have dual-pane windows whose cells have "leaked" and the inside surfaces are discolored. They are installed in ...

Q. We have numerous double-paned windows. Several of these are fogging up between the panes of glass. It appears to be moisture condensation. How can this be removed? The glass panes are in good ...

Installing replacement windows can make your home quieter and less drafty, and you might even save on heating and cooling bills. That’s particularly true if you’re replacing leaky old single-pane ...

Q. I have a window that was installed circa 2003. It is a double-hung, double-paned window that has a sealed space between the two panes. I am not sure whether it was just air or an inert gas in the ...