Corinth has about 8,143 households, which is small next to the 51,980 owner-occupied houses spread across the rest of the Plano service area. That size matters for the kind of calls that come out of this town: it isn't varied enough to have five different building eras stacked on top of each other. Most of Corinth went up around 1997, which puts it a bit ahead of the 2001 median for the broader area we cover. That five-year gap sounds small until you're standing in front of the opener. A door built in the late 1990s came with hardware that was already being phased out by the early 2000s - lighter-gauge track, chain-drive openers without the safety reversal sensors that became standard soon after, and springs sized for panel weights that changed once insulated steel doors got more common. We travel the 20 miles out from Plano for every job here, so when we get a call, we're already thinking about what a house this age is likely to be running, not guessing at it once we're in the driveway.