When a cable slips off its drum, the door drops suddenly on one side and becomes unsafe to operate. We re-seat cables and repair or replace worn drums in a single visit.
The cable wraps in a precise spiral around the drum groove. If the drum shifts, wears, or the cable tension is uneven, the cable climbs out of the groove and derails.
The drum attaches to the torsion shaft via a set screw that can loosen over time.
Cable grooves wear smooth after thousands of cycles, reducing the grip that keeps the cable in place.
If one side has more spring tension, the cable wraps unevenly and eventually jumps out.
A spring break causes one cable to go slack instantly, allowing it to unspool from the drum.
We inspect the full drum assembly, tighten or replace as needed, and re-seat the cable with proper tension.
We check drum groove wear, set screw torque, and shaft alignment before any work.
Worn drums replaced with correct winding direction and diameter for your door height.
Cable wound back onto drum in correct spiral pattern and locked under proper tension.
Both sides equalized and tested for level door hang at all positions.
Don't operate a door with a derailed cable. Call now for a same-day drum repair.
phone_in_talk778 805-4911Same-day service available · No obligation