Quick Guide: How to Repair Unbalanced Torsion Springs

Quick guides to repair unbalanced torsion springs

In this article we will cover the safest way to repair an unbalanced torsion spring due to a broken or unbalanced cable. We hope that this guide will help you be a better installer and provide exceptional service to your customers.


  • Closing the door down on something such as a bicycle
  • One or more broken cables
  • Something is caught in the track

First, confirm that there is an issue. The easiest way to do this is to close the door and check if the area around the door shows any gaps. This is a sign of an unbalanced garage door.

Helpful Tip: To ensure an even surface for the door, make sure nothing is underneath it.

Pro Tip: When replacing one part of a paired set, we recommend that you replace both parts. This ensures even wear on both sides.

  1. First, push the door closed, by hand, as much as you can.
  2. Next, disconnect and unplug the opener.
  3. Then, unwind the tension on the springs with the proper tools. As you unwind the spring, you should notice the high side of the door begin to lower.
  4. With the spring completely unwound, the door should now be sitting flat on the ground and level. You can now assess what part(s) need to be fixed.
  5. With everything fixed and back in place, you will need to reset the torsion assembly.
  6. Once this is complete, run the door manually a few times to ensure the door is balanced, everything is working in the assembly, and nothing is caught in the tracks.
  7. If everything worked smoothly, you can reconnect the opener and do a few test runs.

A few additional helpful tips to remember while working:

  • Always recommend preventative maintenance to the customer at least twice a year. Once before the cold winter season and once before the hot summer season. This is a great opportunity for you to offer a recurring, preventative maintenance plan.
  • During your repair, it is a best practice to do a full inspection, lubricate any moving parts, and recommend or replace any worn parts.
  • After you have completed repairs, be sure to talk with the customer about extra remotes or other accessories available.
  • Always recommend and sell cables and torsion springs in pairs. This will help save the customer additional charges in the future.

To watch the full video and other helpful videos be sure to check out our Solutions Education library.

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Safety Disclaimer: In order to see all procedures completely, there may be safety measures that are not taken by our actors. Be sure to follow any and all proper safety requirements and refer to your manufacturer’s installation manual for details. Your health and safety is the #1 concern. Failure to understand/follow the recommendations in the course could result in property damage, personal injury or death. While all efforts are made to provide accurate information and guidance, it is impossible to predict all door circumstances. Accordingly, the user agrees that the user of this video; products and information contained herein are at your own risk. In no event shall Service Spring be liable for any property damage, personal injury/death, or any other loss or damage that may result from your use of the information and products provided on this video. All information contained within this site is provided “as-is” without warranty expressed or implied. User assumes all responsibility/risk for use of information and products purchased. If you have any doubts about your ability to perform the work safely, we recommend you contact another door professional to complete your repair.

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