Nothing in a home is built to last forever, and windows are no exception. Daily exposure to weather and sunlight takes its toll, plus there is always the chance of breakage. Sometimes you can replace the glass, which is known as re-glazing, but many times the only way to fix a window is to replace it. When the seal on the glass panes of a double-paned window fails, air and moisture enter the window and your home causing the loss of heat and …