A lift cable leaves its drum only when tension goes slack, from an obstruction under the door, a spring problem or a frayed cable letting go, so winding it back without finding which one guarantees a repeat performance.
By Ryan Gold, lead technician, Reliable Garage Doors ยท Updated on July 19, 2026
Drums hold cable in machined grooves under constant spring tension. Kill the tension for a moment, a trash can under the closing door, ice gluing the bottom seal to the floor, a spring that gave up mid-cycle, and the cable goes slack, walks out of its grooves and either tangles on the shaft or unwinds entirely. One side lets go, the other keeps lifting, and the door racks crooked in the opening. That crooked jam is the picture most people meet.
Rewinding the cable onto the drum looks simple on video, but it requires safely releasing and re-applying spring tension, and it ignores the question that matters: why did tension drop? An obstruction is a one-time event; a dying spring or set screws that slipped on the shaft will drop tension again next week. Frayed strands near the bottom loop mean the cable was already failing. Our crew treats an off-drum call as a system inspection: cause, cables, drums, spring health, then rewind and balance.
Door secured and clamped, spring tension safely released, cause identified, cables replaced in pairs when wear contributed, drums inspected for groove damage and set-screw bite on the shaft, then re-tension, level check and balance test. Market range for cable work sits around $150 - $350; the exact number is agreed before the work, as with everything on our cable service page. One documented oceanfront job started as exactly this call and the story lives on that page.
Want a number, not a sales pitch? Call 757-208-1600 and we quote it on the phone where we can.
Not safely; the tangle may be the only thing holding stored tension in an unexpected place. Uncontrolled release is how hands get hurt. Leave it jammed and call.
The racked door binds both tracks and the remaining cable holds one side up. It is wedged, not broken further; professional un-racking usually saves everything.
They do: grooves wear sharp and shave cable strands, and set screws lose bite on the shaft. Scored or slipping drums get replaced with the cables.
Very common coastal-winter call. Free the seal before opening, silicone the bottom rubber before frost season, and the trigger disappears.
