How to Replace Garage Door Cables: 6 Easy Steps (2023)

Is your garage door starting to act up? Do you hear strange noises or notice that it’s not opening and closing smoothly? If so, a worn-out or broken cable could be the culprit. But don’t worry – replacing these cables is easier than you might think! In this DIY guide, we’ll walk you through step-by-step instructions for replacing your garage door cables, so you can get that smooth operation back in no time. Whether you’re a seasoned DIY pro or just looking to save some money on repairs, this guide has everything you need to know to tackle this project with confidence. Let’s get started!

Introduction to Replacing Garage Door Cables

Cables are an essential part of your garage door’s operation. Over time, they can become frayed or even snap, which can cause serious damage to your door and opener. If you suspect that your cables may be damaged, it’s important to replace them as soon as possible.

Step-by-Step Instructions on How to Replace Garage Door Cables

If your garage door cables have become frayed or damaged, it’s important to replace them as soon as possible to avoid serious injury. Here’s a step-by-step guide on how to replace your garage door cables:

  1. First, disconnect the power to your garage door opener. This is important for safety reasons, so be sure not to skip this step!
  2. Next, remove the Medieval Cables end cap at the bottom of the garage door using a flathead screwdriver.
  3. With the end cap removed, you should now be able to see the garage door cables. Using a pair of pliers, grip each cable and pull it down through the sheave (pulley).
  4. Now take your new replacement cable and thread it up through the sheave, making sure that it’s positioned in the same way as the old cable was.
  5. Secure each end of the new cable with an S-hook, then reattach the Medieval Cables end cap.
  6. Reconnect the power to your garage door opener and test out your new cables!

Safety Tips for Replacing the Cables

If your garage door cables have snapped or frayed, it’s important to replace them as soon as possible. Not only are they essential for the smooth operation of your garage door, but they can also be dangerous if they’re not in good working order. Here are some safety tips to keep in mind when replacing your garage door cables:

  1. Make sure the power is off: Before you start any work on your garage door, make sure that the power is turned off. This will help prevent any accidents.
  2. Get help: Replacing garage door cables can be tricky, so it’s a good idea to get someone to help you with the job.
  3. Follow the manufacturer’s instructions: When replacing your garage door cables, make sure to follow the manufacturer’s instructions carefully. This will help ensure that the job is done correctly and safely.

What Tools and Supplies You Will Need

  1. A pair of pliers – You will need a pair of pliers to remove the old cables from the garage door pulleys.
  2. A ladder – You will need a ladder to reach the top of the garage door in order to attach the new cables.
  3. New garage door cables – You will need to purchase new garage door cables that are compatible with your garage door model.
  4. Wire cutters – You will need wire cutters to Cut the new cables to size.

Troubleshooting Common Issues With Replacing Garage Door Cables

If your garage door cables have snapped, don’t worry – you can easily replace them yourself. This guide will walk you through the process step-by-step, so you can get your door up and running again in no time.

First, disconnect the power to your garage door opener. Then, open the door manually to release any tension in the cables. Next, remove the old cables by unhooking them from the pulleys and springs.

Now it’s time to install the new cables. Start by attaching one end of each cable to a pulley, then thread the other end through the spring. Once both cables are in place, tighten them down so they’re secure.

Reconnect the power to your garage door opener and test out the door to make sure everything is working properly. If you find that the door isn’t opening or closing smoothly, make sure that the cables are aligned correctly and not binding on anything.

Alternatives if You Cannot Replace the Cables Yourself

If you cannot replace your garage door cables yourself, there are a few alternatives that you can try. You can either hire a professional to do the job for you, or you can purchase a new garage door.

If you hire a professional, be sure to ask for references and check their credentials before allowing them to work on your garage door. If you purchase a new garage door, be sure to read the installation instructions carefully and follow them step-by-step.


How often should you replace garage door cables?

Depending on the cycle count of your garage door and how often you use your garage, cables should last 8-15 years. You can extend the life of your garage door cables by keeping up with a regular maintenance schedule.

Are all garage door cables the same?

There are several different cables at work on most contemporary garage doors, and each serves a crucial function. Review our comprehensive guide to garage door cables to learn the different garage door cable types, and the functions served by each, and the top causes of common cable malfunctions.

What causes garage door cables to break?

Wear and tear is the most common cause of cable failure. However, water or moisture near the bottom or sides of the door, corrosion, damaged pulley bearings, or improper track alignment can strain or degrade the cables. If you have a snapped or frayed cable, do not use your garage door.

What is the lifespan of garage door cables?

Like all garage door parts, the lifespan of cables depends on cycles. High-cycle cables will last 10-15,000 cycles of opening your garage door. This translates into 8-15 years depending on how frequently you use your garage door. However, you can extend this lifespan with annual maintenance.

Should you lubricate garage door cables?

Both extension and torsion spring systems need to be lubricated on a regular basis. Lubrication helps reduce the friction within the steel coils. Once done, your garage door will operate much more quietly.


Replacing your garage door cables is a project that will require some manual labor and attention to detail. However, following these step-by-step instructions can prove very useful if you are looking to replace the cables in your own garage door. Once completed, you will have saved yourself money on costly repairs and gained valuable knowledge about servicing and repairing your own home appliances. With this guide as a reference, replacing your garage door cable should be an enjoyable DIY task for any skill level.

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