We pull the section with the damaged panel, disconnect the hinges from the panels above and below it, and free the rollers from the track without pulling the whole door off its hardware. On a 2002-or-newer door, the hinges and rollers are usually in good shape since they haven't had 40 years to wear, so the job is often just the panel and the fasteners that got bent with it. We order the replacement panel to match gauge, insulation type, and color rather than swapping in a generic section that'll flex differently under wind load than the rest of the door. Once it's in, we re-hang, re-tension the hardware, and run the door through a full open-close cycle before we call it done.