Garage Door Cable & Drum Repair
One corner sitting lower, or a cable hanging off its drum, means the lift system is out of balance. It wants looking at before the next cycle, not after.
What this involvesDon't leave it
Cable tension monitor fault
A wall-mount opener reports slack or refuses to close.
Right now
What to do before anyone arrives.
Short list, and none of it involves touching the door.
- Keep people, pets, and vehicles clear of the door until it is assessed.
- Stop cycling or forcing the door.
Whatever you do, don't: Do not bypass the cable tension monitor.
Be careful here
A good clue is still not a diagnosis.
A wall-mount opener reports slack or refuses to close.
The catch is that the same behaviour can come from more than one place — the door itself, the opener, the controls, or the safety system — and they interact. That's exactly why a confident phone diagnosis should make you suspicious rather than reassured.
Someone needs to watch the door travel its full path before saying what failed. We won't use one symptom to invent a part, a price, or a reason you need a whole new door.
Where this usually lands
The repair this points to.
Likely, not certain. Worth reading so you know what a fair scope looks like.
Garage Door Opener Repair
Motors take the blame for dead springs constantly. Worth knowing which one you've got before you buy an opener you didn't need.
What this involvesQuestions
Safety first, then everything else.
What does cable tension monitor fault usually look or sound like?
A wall-mount opener reports slack or refuses to close.
Can I fix cable tension monitor fault myself?
Do not bypass the cable tension monitor. Springs, cables, drums, bottom brackets, and any door that is already unstable can release stored energy without warning — this is where the serious injuries in this trade come from. Everything else on the door is fair game.
What should I do right now?
Keep people, pets, and vehicles clear of the door until it is assessed. Stop cycling or forcing the door.
Does this tell me which part has failed?
No, and be wary of anyone who says it does from a description alone. This tells you what the symptom means and whether the door is safe to use. Someone still has to look at the whole door before committing to a part or a price.
Not quite it?
Compare what you're actually seeing.
Next step
Get it sorted before it gets worse.
Describe what the door is doing, from somewhere safe. You'll be told what actually failed and what it costs before anyone starts, it's free to ask, and you're free to say no.