The truth is, most windows and doors are not built to last, and the older they are, the less likely they are to serve your home in a helpful way. Even today, most good windows only have a life expectancy of 30 years, and that’s with double and even triple-pane options. Single pane windows might not last a full decade. Older windows with wood window frames or old wood doors can rot, warp, or swell. The question is, what’s the real problem with old windows and doors?
The main issue is energy efficiency. The older a window or door gets, the more worn down it will become and the less able it will be to resist heat. That means the heat will escape your home in the winter and get in during the summer, which will drive up your heating and cooling costs. And the less efficient your windows and doors are, the more they’ll decrease your home value. But it’s also about security. Aside from front doors, windows are the main way that home intruders get into the home. Old, worn-down windows are easy to break through and into your home.