Importance of Garage Door Springs
Garage door springs carry all the weight of your door, their condition, and the way installed, affects the whole system, which make the spring one of the top priority part in your setup.
Extension Springs are common mainly at single panel door setups, they are the older technology but still fairly common. Extension springs extend to create a counterforce to support the door. Although they provide the necessary force for the job, this method creates a faster wear and tear, and require safety cables to protect the surroundings when it eventually breaks.
Torsion Spring is the newest and safest technology, the torsion spring does not move much, and creates the counterforce by twisting strongly inwards. This method makes the spring a huge danger to install, but much safer to the users and the surrounding ones, and provides it with a much longer lifespan.