You can perform check off all the maintenance tips you want, but neglecting the door itself won’t make it last as long as you want. Over time, wood doors can begin to show signs of water damage, and the paint can peel. In contrast, you’ll need to check steel doors for any rust spots. You can fix these areas relatively quickly by sanding it down, priming it, and painting over it. Finally, don’t neglect washing it with a good all-purpose cleaner. It is especially important during the wintertime when the home’s exterior takes a pounding from the severe weather.
Bonus Tip: Replace the weatherstripping. Mother Nature will cause the weatherstripping at the bottom of the garage door to crack. Replacing it immediately will keep rain or other debris out of your garage. It’s easy to install, and you can get some at nearly every home improvement location.