Besides their primary purpose -- holding the window glass in place -- your window frames help to insulate your home. Normally a long-life item which may last you 30 years or more, window frames can, ...
A: Try one frame and you will quickly find out. I have found it relatively easy.
Better Homes & Gardens on MSN

10 signs you need to replace your windows ASAP

Windows let in sunlight and fresh air, but if they’re damaged or outdated, they could be doing more harm than good.