On a 1989-era house, the tells are consistent enough that we can usually guess the install date before we ask. Lift cables fraying at the drum, rollers that have gone from steel to a cheaper nylon somewhere along the way, and a torsion spring that's clearly been replaced once already but not matched to the door's actual weight - these show up again and again in this pocket because the original hardware specs were similar house to house. If your door still has the single-layer steel panel with no window inserts and a painted finish that's chalked out, that's consistent with original equipment from that build window, not a sign anything was done wrong. The flip side: because so much of Green Valley's housing landed in the same few years, we're not guessing at what's behind the wall when we come out - we've seen the pattern enough times across this part of the service area to know what a new install needs to correct, not just replace.