There are several easy maintenance actions that you should do twice a year on your garage door. The first is to tighten all the bolts on your door. The second thing is to buy a can of silicone spray. Lightly spray your garage door's roller shafts. Don't spray the rollers themselves. Also spray lightly across your springs. Finally if you have a garage door opener with a chain drive, you should lube the chain. That's about it! If you need any other garage door maintenance work just call us at 864-513-1436. We make prompt, inexpensive service calls and you'll find our charge for garage door work to be very inexpensive.