Learn how often a garage door should be maintained and which factors can increase the need for inspection and preventive service.

Learn how blocked, dirty, loose or misaligned garage door safety sensors can affect closing and when professional service is needed.

Learn why a garage door may open or close unevenly and how cables, springs, tracks, rollers and alignment can affect movement.

Learn what squeaking, grinding, rattling and other garage door noises may indicate and when inspection or maintenance is recommended.

Learn why a garage door can come off track, the warning signs to watch for and when the door should no longer be operated.

Learn the warning signs of garage door cable problems, why a door may move unevenly and when damaged or loose cables require professional service.

Learn the common signs of a broken garage door spring, why the door may become extremely heavy and when professional repair is required.

Troubleshoot a garage door opener that is not working and learn how controls, sensors and mechanical door problems can affect opener performance.

Find out why a garage door may not close, including sensor, track, opener and alignment problems, and when professional repair is needed.

Learn why a garage door may not open, what you can safely check and when springs, cables, tracks or opener problems require professional service.