We start by finding out whether the track moved, the bracket pulled, or the cable let go - those are three different repairs that look identical from the driveway. If it's a bracket, we re-anchor it into solid jamb material, not just the same worn screw holes. If the track itself is bent, we replace that section rather than hammer it straight, since a straightened track on a cold-climate door tends to fail again at the same spot once temperatures swing. Once the hardware is sound, we re-hang the door, square it in the opening, and run it through a full cycle under power before we call the job done. On a house this age we'll also flag anything else original - the opener, the springs - that's worth knowing about even if it's not today's job.