A roller job turns into something bigger in a few predictable ways. If the door's a two-car, heavier door and it's been running on the original rollers since the house was built around 2000, the hinges have usually worn an oval hole where the roller stem pivots - replace the roller without replacing that hinge and it'll start clunking again inside a few months. If the track bracket nearest the broken roller has pulled away from the jamb even slightly, that's a separate fastener repair, not a roller issue, and we'll flag it rather than bolt a new roller into a bracket that's about to pull loose again. And if what sounds like a bad roller is actually a bent track from a car bumper tap, no roller in stock fixes that - that's a track section replacement, and we'll say so before any parts come off the truck.