Highland Park's homes mostly date to around 1973, which puts the housing stock a couple of decades ahead of the newest construction we see elsewhere in the area we serve - places where doors went in as late as the 2010s. A door installed in the early 1970s has had fifty years of thermal cycling behind it, and this region sits in a severe heat climate band, which matters more than people think. Steel panels expand and contract season after season, torsion springs lose temper faster under sustained heat, and nylon rollers that were fine in a mild climate get brittle here years sooner.
On a house this age, the failure pattern is usually the spring going first, followed by worn rollers rattling in tracks that have warped slightly from decades of heat exposure. We also see openers from this era still installed - chain-drive units that have long outlived their expected service life simply because nobody's had a reason to replace them yet. None of this is unique in a dramatic way, but it's the specific combination of 1970s hardware and sustained heat exposure that drives most of the repair calls we take out this way.