Torsion springs are an essential piece of a garage door counterbalance system. This system allows garage doors to open and close without using excessive force. When you manually open a garage door, you may notice it feels lighter than what the garage door should weigh. A properly balanced garage door also stays in place rather than falling back to the ground when you let go after raising it halfway. This is thanks to the garage door torsion springs, located in the counterbalance system overhead.