With the door fully closed, take a dry shop rag and draw it slowly down the last two feet of one lift cable, just above the bottom bracket. If the rag catches, you have found a broken strand. A lift cable is seven strands of wire twisted into a rope, and when one of those strands lets go, the broken end stands proud of the surface like a splinter. It will snag cloth long before it is visible from across the garage, and it is the single earliest warning a cable gives you.
With thousands of 5-star ratings across Google, Yelp, Facebook, and Thumbtack, Local Garage Doors replaces lift cables across California, Nevada, and Arizona, and the ones we catch during a scheduled inspection cost a fraction of the ones we catch after they part.
This article is about where fray shows up and what each location is telling you, because fray is a symptom with an address. For same-day service, call 
866-337-1631, 
email info@localgaragedoors.com, or schedule your appointment today.
How to Inspect Safely
Do this with the door fully closed and the opener unplugged. A closed door means the cables are at their most loaded, which is exactly when a compromised cable is most likely to part — so keep your hands to the sides of the cable, never wrapped around it, and never underneath the door.
Use a bright flashlight held low and to the side rather than straight on. Raking light across the cable makes broken strands cast shadows. Straight-on light washes them out.
Inspect both cables. They are the same age, they have carried the same load, and whatever conditions damaged one have been working on the other. We replace cables in pairs for exactly that reason.
Where to Look, and What Each Location Means
Fray is not random. It happens where the cable is worked hardest or where something is doing something to it, and the location narrows the cause down quickly.
At the bottom bracket loop. The cable ends in a loop that drops over a pin on the bottom bracket. This is the lowest point on the door, the wettest, and the tightest bend in the whole cable run. Fray here usually means corrosion, and corrosion here usually means standing water, a failed bottom seal, or coastal air. It can also mean the loop is riding on a worn or grooved pin. This is the most common location we find, and it is the one homeowners can check most easily.
In the last two or three feet above the bracket. This section sits in the same wet zone but takes bending load rather than just tension. Fray spread across a length here — rather than at one point — points at general corrosion and age rather than a mechanical cause.
At a single point somewhere in the middle of the run. One clean spot of damage with clean cable above and below it means something is contacting the cable at that spot. Look directly across from the damage for a track bracket, a fastener, a strut end, or a hinge that the cable is brushing on every cycle. This is a geometry problem, not a cable problem, and replacing the cable without moving the obstruction just resets the clock.
Where the cable meets the drum. Fray at the top usually means the cable has been climbing out of its groove and riding on the flange, or that the drum groove has worn a ridge and is cutting into the cable. Either way the top of the cable is telling you the drum needs attention, and the drum and track alignment clues that go with it are worth checking at the same time.
Uneven fray between the two cables. If one cable looks noticeably worse than the other, the two sides are not sharing the load equally. That is a balance or geometry problem, and it is often the same thing that makes a door hang slightly crooked.
What the Fray Looks Like
Broken strands standing out. Individual wires that have snapped and lifted away from the rope. One is a service call. Several in one place means the cable’s remaining strands are carrying a load they were never sized for.
Flattening. A section of cable that has lost its round profile and gone oval or ribbon-shaped. This is crush damage — the cable has been pinched between the drum flange and the shaft, or stacked on itself in the groove. Flattened cable has lost cross-section and will fail at that spot.
A birdcage. The strands have opened outward into a bulge, like a rope that has been twisted the wrong way. This means the cable has been unloaded and reloaded suddenly — usually a cable that went slack and snapped taut, which points straight back at a broken spring or an obstruction stopping the door.
Rust bleeding along the lay. Orange staining that follows the twist of the strands means the galvanizing has failed and water has gotten into the core. The outside can look survivable while the interior is well past it. Cables corrode from the inside out more often than homeowners expect.
A shiny polished band. A bright, mirror-smooth section is a contact wear point. Something is rubbing there. Find it before you replace the cable.
What Fray Actually Indicates
A frayed cable is rarely a defective cable. It is a record of something the door has been doing.
Corrosion at the bottom says water is sitting where it should not, or the air is doing the work. A single wear point says the cable is touching hardware it should clear. Flattening says the drum is not seating the cable correctly. A birdcage says the cable has been shock-loaded, and shock loading has a cause — a broken spring, an obstruction, or a door that slams shut when tension is lost.
Fray also tends to run ahead of spring failure rather than behind it. Springs and cables age on the same cycle count. A standard spring is rated for about 10,000 cycles, and a door that has used most of that has cables of the same vintage carrying the same history. When we find significant cable wear, we check the springs in the same visit, because the two rarely fail far apart. The early signs of spring failure are worth knowing alongside the cable signs.
Symptoms You’ll Notice Without Looking
The door hangs slightly crooked when closed. One cable has stretched or lost cross-section, so one side sits lower than the other.
A gritty or scraping sound during travel. Broken strands passing across the drum or a bracket make a distinct dry sound that is different from roller noise.
Visible slack in one cable near the top of travel. Slack that appears and disappears through the cycle is a tension problem that will damage the cable if it is not corrected.
Rust flakes or orange dust on the floor below a bottom corner. Small, easy to miss, and a reliable sign that the cable or bracket is corroding above it.
The door shudders as it starts to lift. A cable that is not seating cleanly transmits that hesitation into the panel.
Regional Conditions That Drive Fray
Salt air in San Diego, Encinitas, Solana Beach, Oceanside, and Half Moon Bay. Coastal moisture strips galvanizing and pits the wire. Pitted cable frays at the pits, and it does it fastest at the bottom bracket loop where salt spray settles and stays.
Standing water in Sacramento, Woodland, Dixon, and Stockton garages. Winter runoff that pools at the threshold sits against the bottom of both cables. A failed bottom seal turns a seasonal problem into a permanent one.
Heat and grit in Phoenix, Chandler, Tempe, and Anthem. Garage interiors exceed 120°F in summer and Phoenix garages reach 130°F. Heat thins the lubricant on the cable, and monsoon dust works into the strand gaps as an abrasive. Desert cables tend to show wear along the whole run rather than at one point.
Freeze-thaw around Truckee, Grass Valley, Foresthill, and Carson City. Water that wicks into the cable core and freezes forces the strands apart from the inside. Road salt tracked in on vehicles accelerates it.
Older Bay Area installations in Berkeley, Alameda, Vallejo, and Sebastopol. Original hardware from decades-old construction was often galvanized to a lighter standard than current cable, and it has been through more cycles than anything on a newer door.
What Replacement Involves and What It Costs
Cable replacement is spring-system work. Tension comes off the springs first, both cables come off, the drums and bottom brackets are inspected, the cause of the wear is corrected, and new cables sized to the door go on with matched tension left and right.
Cable replacement runs $150 to $300 depending on door size and cable length. A tune-up and safety inspection runs $95 to $195 and is the visit where fray gets caught early. If the inspection turns up spring wear at the same time, spring replacement runs $250 to $850 depending on door size, spring quality, and whether it is a single- or two-spring system. Our 2026 repair cost guide has the full breakdown.
Cable replacement is not a DIY job. The cables anchor to a bottom bracket that is under the full lifting load of the door, and they run to drums on a shaft holding 200 to 300 foot-pounds of torque. Our self-help guide covers where the line sits on this kind of work.
The Bottom Line
Cables give you warning. They fray before they part, and the fray is visible weeks or months ahead if you know where to point the light.
Check the bottom bracket loop and the two feet above it first, because that is where corrosion does its work. Then look for a single damaged spot in the middle of the run, which means the cable is touching something it should clear. Then check the top, where the cable meets the drum, for flattening or a polished band.
Whatever you find, treat the location as a diagnosis rather than a verdict on the cable. Replacing a frayed cable without correcting what frayed it means doing the job twice. And when one cable shows wear, both get replaced, because they are the same age and they have carried the same door. A spring and cable inspection covers both sides and the hardware they run through.
Call us at 866-337-1631,
email info@localgaragedoors.com.
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Frequently Asked Questions About Frayed Garage Door Cables
How many broken strands are too many?
Treat any broken strand as a reason to schedule service. A lift cable is a small-diameter rope carrying a share of a door that can weigh 130 to 400 pounds or more, and each broken strand transfers its load to the remaining ones. There is no safe count to keep operating on.
Can I keep using the door until my appointment?
Use it as little as possible, and never park under it or stand beneath it while it moves. If the door hangs visibly crooked, or a cable shows flattening or a birdcage, stop using it entirely and leave it closed. A cable that parts under load drops the door on one corner.
How long do lift cables last?
They age on cycles, not years. Springs are rated at about 10,000 cycles, and cables on the same door have taken the same count. A two-car household running the door four times a day gets through that in roughly seven years, while a busy family gets there faster. Coastal and desert conditions shorten it further.
Do both cables have to be replaced at once?
Yes. They are the same age, they have carried the same load, and a new cable paired with an old one puts unequal stretch on the two sides. Matched replacement is what keeps the door tracking straight.
Is a frayed cable covered by my homeowners insurance?
No. Cables are a wear item. Homeowners insurance does not cover wear and tear, normal aging, or damage from lack of maintenance. Manufacturer warranties on the door cover defects in the door and hardware, not wear items like springs and cables.
Why did my cable fray if the door is only a few years old?
Usually because something is acting on it. A contact point with a bracket, a worn drum groove, standing water at the bottom, or coastal air will damage a new cable as readily as an old one. Age is one cause among several, and on a young door it is rarely the cause.
Does lubricating the cables help?
Not in the way people expect. Cables are not lubricated the way rollers and hinges are, and coating them attracts the dust and grit that does the abrading, particularly in desert garages. What helps is keeping water off them, keeping the bottom seal intact, and having the geometry checked during a regular lube and tune.