This isn't a generic garage door problem - it's specific to what got built here and when. Stuart's housing stock, and the stock across North River Shores, Sewall's Point, Jensen Beach, and Port Salerno nearby, runs heavily through that same 1969-1988 construction window, with most of it dated to the early 1980s. That means a large share of the roughly 19,430 owner-occupied houses in this service area are sitting on garage hardware that's now well past its rated cycle count, all aging out around the same time.
The mild temperate climate band here doesn't throw the freeze-thaw stress at doors that causes early failure elsewhere, so when a Stuart door fails, it's almost always straight mechanical fatigue - spring cycles, cable wear, roller wear - rather than weather damage. That's consistent across the service area, out to Hobe Sound and Indian River Estates ten to twelve miles off, where the same construction-era houses carry the same original hardware.
With median household income in the area at $63,724, a lot of these repairs are weighed against a tight household budget, which is exactly why we quote the full job up front instead of surprising anyone with add-ons once the door's already open.