With a median household income of $79,739 across the area we serve, Glenn Heights homeowners tend to keep a house rather than flip it fast, which means doors installed around 2000 are still the ones in daily use today - pushing 25 years of openings and closings on the original panels. That's long enough for the bottom panel, the one that takes the brunt of car doors, stray basketballs, and the occasional backing-in mistake, to show real wear even if the rest of the door looks fine.
The climate here runs moderate on heat exposure, not the extreme swings you'd get further west, so panel warping from sun alone isn't the main driver of calls. It's more often physical impact or age-related seam separation on doors that have been through two decades of Texas summers. One thing we won't do is talk you into replacing a whole door when one or two panels are the actual problem - if the track and springs are sound and the panel is available, that's the cheaper and faster fix, and we'll say so.