The median year built in South Hadley is 1961, a few years earlier than the wider service area's 1965 median, and it puts this town solidly in the postwar wave of construction that ran from 1938 into the 1980s across the region. With 7,246 households here, that's a real concentration of houses from the same building era, which means a real concentration of the same garage hardware aging out at roughly the same time. A lot of these garages were built for a single steel door on extension springs or early torsion setups, sized for the cars and the openers of that period, not for today's heavier insulated panels or the sensors current code expects. Median household income here is $93,646, which tells us people are generally in a position to replace a door properly rather than patch it repeatedly, but that's a household number, not a promise about any one house. Whether your garage has been updated since 1961 or not is the real question, and it's usually visible the moment we're standing in front of it - track spacing, spring type, and header clearance all tell the story.