Garage Door Cable Repair in Coronado, CA

Measured from each 2020 Census block to the Census Bureau's shoreline map, the average Coronado home is only about 0.3 miles from the ocean or the bay. At that distance the moisture in the garage carries salt, and a lift cable is a poor place for salt to land. The cable is twisted from many thin steel wires. Its galvanized coating protects the outside, but damp salty air creeps into the gaps between the wires, where it cannot dry out, and the rust it forms there swells the cable and snaps wires from within.

The worst of it gathers low. The last foot of each cable, where it hooks onto the bracket at the bottom corner of the door, spends its life near the slab, in the dampest air in the garage and in reach of rain blown under the door. That is the stretch that most often parts.

A door that rarely moves

If the garage door is opened only now and then, the cables do not get a rest. The same short lengths stay pressed against the drums and parked near the floor for weeks, and corrosion concentrates exactly there. The first open after a long gap is often when a weakened cable lets go.

The door is clamped where it stopped and the spring tension is released before any cable is handled. Both cables come off and are looked over along their full length, not just at the break. The bottom brackets are checked for rust scale and thinning steel, and the drums for pitting in the grooves, since a rough groove chews a new cable in short order. Pitted drums and scaled brackets are replaced on the same visit rather than left to wear the fresh cables. The springs are then rewound, the balance is tested with the opener disconnected, and the shaft bearings get a light coat of garage door lubricant. How the full repair runs, including doors that have left their tracks, is set out on the garage door cable and off-track repair page.

• With the door closed, stand back and look at the bottom few inches of each cable. Orange dust, a swollen section or a single wire sticking out are all worth a call.
• Check the floor under each lower corner for rust flakes. They fall from brackets and cables well before either one fails.
• Notice whether the door now settles crooked or lands harder on one side than the other.
• Do not wipe, oil or pull on the cables, and never loosen the bracket bolts. Both carry spring load whenever the door is closed.

If a cable has snapped or come off its drum, unplug the opener and leave the door where it stopped. The line is (619) 666-6054, and Doorup picks up 24 hours, 7 days a week. Springs, rollers and the rest of the salt-air wear on garages here are covered on garage door repair in Coronado. Across the bay, National City cable repair deals with older doors whose cables run over pulleys, and the post on how to tell a garage door cable is failing walks through the early warnings.