While it's highly likely you've heard of double glazing – window made with two panes of glass separated by an air gap for insulation – you may be less familiar with triple pane windows. These instead ...

You might feel a draft. Or notice that your window sashes are damaged. Maybe the panes fog or condensation collects between them. Or, worse, the frame itself is rotting. If any of these scenarios are ...

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 ...