A broken torsion spring on a double door is the most common call we get in this area, and the job itself is straightforward once you're set up for it: unwind the old spring safely, measure the door's wire size and wind length against the drum and cable setup already on the track, and install a matched pair rated for the door's weight. Extension springs, common on older single-car doors, are a different job - different hardware, different failure pattern, different fix. We don't guess on wind direction or wire gauge; get either wrong and the door either won't lift evenly or the spring fails again in months, not years. Most jobs in this service area are one visit, one call. The honest limitation: if the torsion tube, drum, or cable is also worn from the same age and stress that took out the spring, that's a second part, and we'll tell you before we touch it, not after. We don't pad a spring job into a full teardown just because the door is open.