Need service in San Mateo?
Call 650-912-1817 to describe the problem and confirm current availability.
Call 650-912-1817 to describe the problem and confirm current availability.
Watch and listen
Notice changes in movement, vibration, balance and sound. A door that becomes crooked, jerky or much louder deserves attention.
Keep the operating area clear
Keep tracks and the area around the safety sensors free of obvious debris and objects. Do not use lubricant as a substitute for correcting damaged or misaligned hardware.
Know the DIY boundary
Do not loosen spring hardware, bottom brackets or lift cables. Those components can be under substantial tension.