We start by matching the panel - brand, profile, and color, or as close as the manufacturer's current lineup allows. On a door built around the early '90s standard sizes, matching is usually straightforward since 7-foot and 8-foot sectional dimensions haven't changed much, but exact color match can be a step behind if the original run has been discontinued.
Once the part's in hand, the job is mechanical: disconnect the opener, secure the door in position, pull the hinges and end hardware off the damaged section, swap in the new panel, and re-hang the hinges, rollers, and end caps. If the damage sits below or beside where the torsion spring anchors, we check spring tension and cable alignment before closing it back up, since a panel swap is a normal time to catch a spring that's a season or two from failing anyway.
Last step is a full-cycle test - up, down, reverse-on-obstruction - to confirm the door tracks straight and the opener isn't fighting a misaligned section.