Extension springs stretch when the door is closed and release stored energy when the door opens. They mount along both sides of the door and connect to cables that counterbalance the door weight. Properly matched springs allow smooth lifting with less effort and reduce strain on the opener.
How do garage door extension springs work? Print
Modified on: Thu, 23 Oct, 2025 at 12:35 PM
Did you find it helpful? Yes No
Send feedbackSorry we couldn't be helpful. Help us improve this article with your feedback.