Most garage doors in Hampshire are steel sectional units, not the one-piece or wood-panel doors you'll find on the older streets closer to DeKalb. Hampshire's housing stock centers on 2003, a couple decades newer than the 1960s-70s stock that dominates most of the rest of our service area. That means wider, taller openings - standard 16x7 double doors and 9x7 or 8x7 singles - built with factory-insulated steel sections and a foam core bonded between two skins of galvanized steel.
The failure mode is different too. On an older one-piece door, a dent is cosmetic. On a sectional steel panel, an impact - a car bumper, a dropped ladder, a kid's bike - cracks the outer skin and lets moisture into the foam. In our climate band, with the cold we get most winters, that trapped moisture freezes and expands, and the crack spreads along the seam. By spring you've got a panel that's bowed, not just dented, and it drags on the rollers every time the door cycles.
Because these doors are newer, owners often assume a scratched or dented panel is a quick cosmetic fix. Sometimes it is. But if the impact hit near a hinge stile, the section can be structurally compromised even when the dent looks small.