How to replace garage door cables?

How to replace garage door cables?


Replacing garage door cables is an essential maintenance task that homeowners may need to undertake at some point. Garage door cables play a crucial role in the smooth operation of the door, as they help support the weight and ensure proper balance. In this article, we will provide a step-by-step guide on how to replace garage door cables effectively and safely.

Tools and Materials

Before starting the replacement process, gather the necessary tools and materials. Here are the items you will need:

– Safety glasses
– Adjustable wrench
– Vice grips
– Socket set
– Screwdriver
– Pliers
– Ladder

– Replacement cables (make sure to purchase the correct size and type for your garage door)
– Safety gloves

Step-by-Step Guide

Step 1: Safety First
Always prioritize safety when working on your garage door. Wear safety glasses and gloves to protect your eyes and hands from any potential hazards.

Step 2: Disconnect the Power
To prevent any accidents, disconnect the power to the garage door opener. This can usually be done by unplugging it from the power outlet or turning off the circuit breaker.

Step 3: Release Tension
Before attempting to replace the cables, you need to release the tension in the garage door springs. This can be done by pulling the emergency release handle, usually located near the opener.

Step 4: Remove the Old Cables
Using an adjustable wrench, loosen the nuts on the bottom brackets of the garage door. This will allow you to detach the old cables from the brackets. Next, remove the cables from the pulleys and rollers.

Step 5: Install the New Cables
Attach the new cables to the bottom brackets, making sure they are properly secured. Thread the cables through the pulleys and rollers, ensuring they are aligned correctly.

Step 6: Reattach the Springs
With the new cables in place, it’s time to reattach the springs. Follow the manufacturer’s instructions to properly tension the springs. This step may require the assistance of a professional if you are not familiar with working with garage door springs.

Step 7: Test the Door
Once everything is securely in place, test the garage door to ensure it operates smoothly. Open and close the door several times to check for any issues or unusual noises.


Replacing garage door cables is a task that should be approached with caution and attention to detail. By following the step-by-step guide outlined in this article, homeowners can successfully replace their garage door cables and maintain the proper functioning of their garage doors.


– DoItYourself:
– The Spruce:
– Family Handyman: