How to Replace Garage Door Cable

If you're wondering why your garage door isn't operating, you're undoubtedly frustrated and anxious about having to pay for a pricey repair or replacement. However, if you can precisely determine that your garage door cable is faulty, you can perform the necessary repairs yourself!

It's critical that you take steps to ensure that your garage door is secure for you and your family as soon as possible, and this article can help you get started. If you want to discover how to replace garage door cables, keep reading for seven simple steps to follow.

What is the Function of a Garage Door Cable?

Your garage door cable is a safety precaution that keeps you safe if the garage door spring breaks. The bottom of the garage door is connected to the cable drum by torsion spring cables, which allows the springs to lift the door from the bottom. The springs might wear out over time and finally, get damaged and frayed.

Regularly inspecting your garage door parts will help you learn to recognize worn-out springs so you can repair them before they fail. The spring could snap when the door is moving if you don't replace them in time.

The safety restraint cable on a door that uses extension springs prevents an extension spring from damaging your car or anyone in your home. If you don't have one, the spring may recoil violently, denting your automobile and, in the worst-case situation, causing life-threatening injuries or death.

When Should a Garage Door Cable Be Replaced?

If you're wondering whether or not you need a new garage door cable, start by determining the present condition of the cable. Once a year, inspect the cable for damage and replace it if necessary.

Frayed wires, broken or split wires, corrosion, and oxidation are the most prevalent indications. If you observe any of these symptoms of wear, it's better to replace the cable to be safe in case a spring breaks.

Garage Door Cable Replacement

While the procedure may appear complex, repairing a garage door cable does not have to be a difficult task! If you get stuck at any point during the process, you can always reach out to our customer service team for assistance.

Make sure you have all of the essential tools before beginning work on your garage door, and then detach your garage door opener by pulling down on the emergency release handle. Near the opener or the top rail, the emergency release is usually a scarlet rope with or without a handle. You can manually open and close your garage door after disengaging this.

Materials and Tools Required

To keep yourself safe, you should have the appropriate tools on hand before beginning the job. You can always order them or go to your local hardware store if you don't have any.

  • Replacement Garage Door Cables
  • Safety Glasses
  • Leather Work Gloves
  • Rags
  • Ladder or Step Ladder
  • Vice Grip or Locking Pliers
  • Winding Bars
  • Wrenches
  • Ratchet
  • Sockets

It's critical to remember to dress in old clothes that aren't too baggy, no jewelry, and appropriate footwear like boots. Because the edges of the wire may be sharp if it is broken or frayed, leather work gloves are recommended to avoid harm. When conducting DIY home repairs, your safety should always come first.

  1. Unlock the door

Open your garage door and use one of your vice grips on both sides of the roller. Before you begin working on the cables, make sure the garage door is in the appropriate position.

  1. Unwind the spring tension

Loosen the spring screw settings in the center of your garage door with 14 turns. After that, fully insert both winding bars. To avoid harm and to avoid getting in the way of the bars, you must use both bars simultaneously.

Unwind the garage door spring in 14-inch increments until all tension is gone. Do this for each of your garage door's springs.

  1. Unscrew the cable drum screws.

After removing the tension, release the cable drum screws at the top left of your garage door with your wrench, and then remove the cable. Remove the bottom screw from the jamb bracket towards the bottom of the door using your ratchet and socket. Remove the cable and then the bottom bracket.

  1. Connect the new cable

Thread the new cable up into the drum at the top of the garage door, then into the bottom bracket. Rep the procedure on the opposite side of your door.

  1. Hook up the cable

Insert the cable into the slot in the cable drum. Make sure everything is in place and there are no overlaps. Wind the cable onto the drum, slide the drop over the bearing plate, and tighten the cable by turning it counterclockwise.

Tighten all screws after you've completed both sides. Overtightening the screws can cause them to peel.

  1. Intensify

    the spring tension

Use the vice grip to hold the rod that intersects the garage door against one wall while holding your new cable, and then repeat on the other side. After that, increase the tension on the springs by 14 revolutions using the winding bars. Avoid overstretching your springs.

  1. Concluding remarks

Re-engage the door by pulling down on the emergency release, then lift the door until it clicks into place. After that, you can plug your garage door opener back in.

What do you do first now that you know how to replace the garage door cable?

Examine your present cable for evidence that it needs to be replaced before ordering garage door replacement parts.

Once you have all of the necessary items, gently remove and replace your cable using this seven-step process. This process may appear daunting at first, but know that our specialists are available to help.


We perform repairs on almost every type of garage door and seeing hundreds of doors, we can promise nothing but the best service.
Inland Empire CA:
+1 (951) 310-9909
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