A door installed to fit a 1965 opening without checking for settling or old shims will bind within a year, usually at one of the top rollers. Houses built in this era in Mountain Brook often have hand-framed openings rather than the factory-true rough openings you get in newer stock, so a door that looks level on delivery day can be a quarter-inch out by the time it's hung. That's not a defect in the door; it's a mismatch between a modern manufactured panel and an older, unique opening. The other local factor is simply income and upkeep: median household income here is $191,128, well above the broader area, and homeowners at that level tend to replace rather than patch. That's good for getting ahead of a failure, but it also means we see more full-replacement calls on doors that are only 10 to 15 years old because the owner wants updated insulation or a quieter opener, not because the old door failed outright.