Housing in this service area went up mostly between 1965 and 2005, with the median build year around 1977, and across the twenty neighborhoods we cover the bulk of that stock dates to the 1960s and 70s. That matters for installation because those openings were framed for the doors of that era - narrower, lighter, single-panel steel - and a lot of the failures we see start when someone bolts a modern insulated door onto old hardware without adjusting for the weight difference. The mild temperate climate here doesn't crack concrete or seize hardware with frost the way a northern winter would, but it does its own kind of damage over decades: steady humidity and UV exposure break down weatherstripping, fade and chalk paint finishes, and slowly corrode fasteners that were never rated for forty years of salt-tinged coastal air. Put those two things together - old openings sized for old doors, and a climate that wears down seals and coatings gradually rather than dramatically - and you get a lot of doors that look fine from the driveway but are past the point where a repair is the honest answer. That's usually when installation, not another patch job, is what actually solves it.