If The door starts to close, then reverses and the opener light blinks.
Then Photo-eye alignment.
The sensors near the floor are out of line or dirty; a clean and re-aim usually restores normal closing.
Inspection, adjustment, sealing, and section-level repairs.
Repairs
Think of this as the general practice side of the trade. Sticking doors, uneven travel, a grinding sound on the way up, a gap you can see daylight through: we look at the whole door, find what changed, and correct it.
Garage Door Safety InspectionYou moved in three months ago.
Garage Door Tune-UpYou pulled the red cord to lift the door by hand during a power cut and it felt like lifting a car.
Off-Track Garage Door ResetYour car is inside and the door is stuck crooked across the opening.
Garage Door Panel ReplacementThe inside face of one section has started to bow outward and the outer skin has a soft, wavy look.
Garage Door Bottom Seal ReplacementEvery mild afternoon the snow melts off the car, runs to the door, and by morning the rubber strip along the bottom is frozen to…
Garage Door Perimeter WeatherstripThe bedroom over the garage is always the cold room, and standing in the garage you can feel why: a steady draft along the door…
Garage Door Manual Lock RepairThe outside handle wobbles in your hand and the inside knob spins round and round with nothing attached.
Which fix fits?
Tap a situation. The answer opens here.
If The door touches the floor and pops back open.
Then Close-limit adjustment.
The opener thinks it hit something; setting the travel limit correctly stops the bounce.
If The door closes but leaves a gap along the bottom.
Then Bottom seal and limit setting.
A compressed seal or a short travel limit leaves daylight; both are simple to correct. Garage Door Bottom Seal Replacement