How to replace torsion spring on garage door?

How to replace torsion spring on garage door?


Replacing a torsion spring on a garage door is a task that requires caution and precision. Torsion springs are an essential component of a garage door system, providing the necessary tension to lift and lower the door smoothly. Over time, these springs may wear out or break, necessitating replacement. In this article, we will explore the steps involved in replacing a torsion spring on a garage door, ensuring safety and effectiveness throughout the process.

Gather the Required Tools and Materials

Before beginning the replacement process, it is important to gather all the necessary tools and materials. Here are the items you will need:

– Winding bars
– Adjustable wrench
– Socket set
– Safety glasses
– Gloves

– New torsion spring(s)
– Lubricant spray
– Safety cables (optional, but recommended)

Ensure Safety Precautions

Working with garage door springs can be dangerous, so it is crucial to take appropriate safety precautions. Here are some important steps to follow:

1. Disconnect the power: Before starting any work, disconnect the power to the garage door opener to prevent accidental activation.

2. Wear safety glasses and gloves: Protect your eyes from any potential debris or spring fragments, and wear gloves to safeguard your hands.

3. Secure the door: Ensure the garage door is fully closed and use clamps or vice grips to secure it in place. This prevents the door from accidentally opening or closing during the spring replacement.

Remove the Old Torsion Spring

To remove the old torsion spring, follow these steps:

1. Identify the winding cone: Locate the winding cone at the end of the torsion spring shaft. This cone holds the spring in place.

2. Release tension: Insert the winding bars into the holes on the winding cone and slowly release the tension on the spring by turning the bars in the opposite direction of the winding.

3. Remove the old spring: Once the tension is released, carefully remove the old spring from the torsion shaft.

Install the New Torsion Spring

Installing a new torsion spring requires precision and attention to detail. Follow these steps:

1. Determine the correct spring: Measure the length and inside diameter of the old spring to ensure you select the appropriate replacement.

2. Insert the new spring: Slide the new torsion spring onto the torsion shaft, ensuring it is centered and properly aligned.

3. Wind the spring: Use the winding bars to wind the new spring, following the manufacturer’s instructions for the number of turns required based on the weight of your garage door.

4. Test the tension: Once the spring is wound, test the tension by slowly opening and closing the garage door. Make any necessary adjustments to achieve the desired balance and smooth operation.

Optional: Install Safety Cables

While not mandatory, installing safety cables can provide an extra layer of protection in case a torsion spring breaks. Safety cables run through the center of the spring and prevent it from flying across the garage if it snaps. Consult the manufacturer’s instructions for the proper installation of safety cables.


Replacing a torsion spring on a garage door is a task that should be approached with caution and attention to detail. By following the steps outlined in this article and taking the necessary safety precautions, you can successfully replace a torsion spring and ensure the smooth and safe operation of your garage door.