If you’ve seen water between glass panes, leaking, water stains or evidence of wood rot – those are signs that excess moisture is accumulating where you can’t see it. This can lead to damage, including mold, mildew and warping. While some condensation is normal, an excess of moisture often points to a problem.

If you need to wrap up in a blanket to sit by your windows, it may be time to switch to more energy efficient windows.

Older windows have a tendency to break down and often refuse to open or have a hard time closing. Save yourself the headaches and consider new options.