opener gets a lot of use. over time, it can start to sag and get loose. it will start to make a loud noise as it begins to rub up against the garage door as it opens and closes. tightening this chain is as simple as tightening a bolt. with a wrench, you can tighten the chain and maintain your garage door.
tighten hardware. because there are so many moving parts in a garage door things can begin to come loose. screws, bolts, and other hardware can also start to become wobbly. this can cause the garage door to rumble and squeak. by simply taking a wrench or a screwdriver, you 