Most of the houses we work on across Flora Vista, Upper Fruitland, Kirtland, Bloomfield, Aztec, and Waterflow went up in the same twenty-year window, 1978 to 1993, with the median landing around 1985. That timing is late enough that nearly every home has a factory-installed steel sectional door rather than an old one-piece swing-up, but early enough that the original springs, openers, and track hardware on unrenovated homes are now 30 to 45 years old.
The failures that come with that age are similar town to town: torsion springs that have outlived their rated cycle count, chain-drive openers due for a logic board or a full swap, and steel panels showing surface rust where the galvanizing wore thin decades ago. We do not claim one town's stock is older than another's, because the honest answer is that the era is the same right across the service area.
What differs house to house is whether a previous owner ever touched the door. A home still running its original 1986 hardware looks nothing like one that had an opener swap in the 2000s. Across roughly 6,936 households and 2,935 owner-occupied homes, many are long-term owners, so we usually find the original parts aging out together rather than a patchwork of newer ones.