We travel from Holland for this, about 12 miles each way, so we schedule panel jobs rather than treating them as same-day drop-ins the way we might for something closer in. Once we're on site with the right section, a single-panel swap on a double door usually means removing the hinges on either side of the damaged section, sliding it out, and fitting the new one back into the existing hinge and roller hardware - no reason to touch the rest of the door if it's sound. We'll check the track alignment and opener force settings before we leave, since a door that's been running on a bent or cracked panel for a while sometimes needs a small adjustment elsewhere too.