United Garage Door Service - Garage Door Spring Services Salisbury, MA -978-344-2240
Torsion springs
Modern torsion springs have an edge over extension springs in terms of safety and reliability. The uniqueness of this system is what gives birth to its strength. The entire setup comprises a tightly wound spring over a shaft, with cables running through drums at both ends. When the door is lifted, the spring unwinds, transferring its stored energy to the cables which lift the door. These cables are the ones providing the added safety, as they can hold up the door even in the case of a broken spring.
