Garage Door Cable Replacement: before you call

The cable has wrapped itself around the shaft above the door instead of sitting on its drum. When the opener runs, the door lurches, one side rises before the other, and the top panel twists.

Worth answering before the call

Is there one spring above the opening, or springs stretched along the tracks? Is it a single or a double door, and roughly how tall? Is there rust on the cables or brackets near the floor?

What is the difference between a lift cable and a safety cable?

A lift cable does the work: it connects the door's bottom corner to the spring system and carries the door's weight. A safety or containment cable does no lifting at all. It runs through the middle of an extension spring and is anchored at both ends so that if the spring breaks, the pieces stay put. Torsion springs sit on a shaft and do not need one.

Will the springs be checked as part of cable work?

Always. Cables and springs are one system, and a spring that is weak, mismatched or wound short is a frequent reason a cable goes slack in the first place. The technician looks for breaks, measures the spring against the door weight, and confirms the correct number of turns when winding back. If a spring needs replacing, that is explained and offered as its own decision rather than folded in unannounced.