Most garage door springs have a lifespan of 10,000 cycles. Cycles refer to the garage door opening up and closing. Suppose you exit your garage in the morning and then enter it in the afternoon, then the door opens and closes twice a day. Thus, it has gone through two cycles. That gives you about seven years of garage door spring life.
If more than one person comes in and out of the garage, then it will reach its maximum cycle lifespan much faster. However, some engineers create specialty springs that are suited for industrial uses. These special torsion springs double the average lifespan, as they expect several vehicles to use the garage.
Regardless of their lifespan, they can still break eventually. As such, garage door broken spring repair remains an essential service.