The two steel cables running from the bottom brackets to the drums above are what actually lift your door. They are under full spring tension whenever the door is closed, and they wear from the inside out.
What to look for
With the door fully open (tension at its lowest), look at the cable where it wraps the drum and where it meets the bottom bracket. You are looking for broken strands standing proud of the cable, kinks, flattened sections, or rust-coloured dust below the drum.
A cable never fails all at once. It loses strands quietly for months. The dust on the floor under the drum is usually the first clue anyone notices.
BH Garage Door USA technicians
Why a broken cable is more than an inconvenience
When one cable parts, the door is being lifted at one corner only. It racks in the tracks, usually jams, and frequently comes off track entirely — which bends sections and can pull the track from the wall. What was a modest cable replacement becomes a much larger repair.
If you see fraying
- Stop using the door. Every cycle costs strands.
- Do not attempt replacement yourself — the cable is under full spring load at the bottom bracket.
- Replace both cables, not one. They have done identical work.
- Have the drums checked at the same time; a rough drum is often what damaged the cable.
How long should they last?
On an inland property with regular lubrication, cables commonly outlast a set of springs. On the coast, or where water sits against the bottom bracket, they can go much sooner. They are inexpensive parts — replacing them alongside springs is usually the sensible call.
Why this is worth two minutes of your month
A garage door is the heaviest moving object in most homes.
And this is usually where it goes wrong. Modern doors have real safety engineering in them — two independent reversing systems, pinch-resistant sections, containment for the Garage Door Springs.
All of it only helps if it is working. And all of it can fail quietly, with no warning at all that it has failed. Most people find this out the expensive way.
The two tests, and how to do them properly
The first is the photo-eyes. With the door open, press close and pass something through the beam near the floor. A broom handle is ideal. Never a hand or a foot.
Worth saying plainly. The door should stop and reverse immediately.
The second is the mechanical reverse. Lay a solid object flat in the opening — a length of timber a couple of inches thick is traditional — and close the door onto it.
It should reverse on contact. If it keeps pushing, or stops without reversing, stop using the Garage Door Opener until it has been adjusted. That is not a sales line. It is just how the hardware behaves.
What we check on a safety visit
Every visit runs the same way, whatever the original complaint was. It is quicker than it sounds, and it stops us treating a symptom and calling it a fix.
- Photo-eye alignment and the condition of both lenses.
- The mechanical auto-reverse, tested against a solid object on the floor.
- Force settings — too sensitive gives nuisance reversals, too high defeats the point entirely.
- Spring containment on any door still running extension springs.
- The condition and reach of the emergency release.
If something on that list is worn but not urgent, we say so and give you a rough idea how long it has left. That way you can plan instead of react. It is a small thing that turns into a big thing.
The mistake we see most
Taping the sensors to face each other, or unplugging them, to stop a nuisance reversal.
So what does that mean day to day? We understand the temptation. The door keeps reversing, it is maddening, and the sensors look like the problem.
They are not the problem. They are reporting one.
That circuit is what stops a door closing on a child. If it misbehaves, fix the cause rather than removing the protection. We say that from experience, not from a brochure.
The short version
If you take one thing away from all of that: a door that is balanced, lubricated and has working safety reverses will outlast one that is not. By years, not months.
Almost everything we get called out to was preventable. Most of it was cheap to prevent, too.
So if any of this sounds like your door, get eyes on it while it is still an inconvenience rather than a breakdown. We would rather do the small job.
Why this is worth two minutes of your month
A garage door is the heaviest moving object in most homes.
Worth saying plainly. Modern doors have real safety engineering in them — two independent reversing systems, pinch-resistant sections, containment for the Garage Door Springs.
All of it only helps if it is working. And all of it can fail quietly, with no warning at all that it has failed. Most people find this out the expensive way.
The two tests, and how to do them properly
The first is the photo-eyes. With the door open, press close and pass something through the beam near the floor. A broom handle is ideal. Never a hand or a foot.
It sounds obvious. It is not. The door should stop and reverse immediately.
The second is the mechanical reverse. Lay a solid object flat in the opening — a length of timber a couple of inches thick is traditional — and close the door onto it.
It should reverse on contact. If it keeps pushing, or stops without reversing, stop using the Garage Door Opener until it has been adjusted. Most people find this out the expensive way.
What we check on a safety visit
Every visit runs the same way, whatever the original complaint was. It is quicker than it sounds, and it stops us treating a symptom and calling it a fix.
- Photo-eye alignment and the condition of both lenses.
- The mechanical auto-reverse, tested against a solid object on the floor.
- Force settings — too sensitive gives nuisance reversals, too high defeats the point entirely.
- Spring containment on any door still running extension springs.
- The condition and reach of the emergency release.
If something on that list is worn but not urgent, we say so and give you a rough idea how long it has left. That way you can plan instead of react. That is not a sales line. It is just how the hardware behaves.
The mistake we see most
Taping the sensors to face each other, or unplugging them, to stop a nuisance reversal.
Let us be honest about this bit. We understand the temptation. The door keeps reversing, it is maddening, and the sensors look like the problem.
They are not the problem. They are reporting one.
That circuit is what stops a door closing on a child. If it misbehaves, fix the cause rather than removing the protection. Most people find this out the expensive way.
The short version
If you take one thing away from all of that: a door that is balanced, lubricated and has working safety reverses will outlast one that is not. By years, not months.
Almost everything we get called out to was preventable. Most of it was cheap to prevent, too.
So if any of this sounds like your door, get eyes on it while it is still an inconvenience rather than a breakdown. We would rather do the small job.
We cover 54 Florida cities, usually same day.
