Duarte's housing stock runs later than a lot of the area we cover. The median build year here is 1967, which puts most garages a good eight years past the 1959 median for the wider service territory. That gap matters more than it sounds. Houses from the late 1950s through the early 1960s were still being built with lighter, narrower tracks and smaller torsion springs sized for hollow-core wood doors. By 1967, builders had mostly shifted to steel sectional doors with wider rollers and extension or torsion setups that hold up better under repeated cycling. That doesn't mean Duarte garages are new - a door installed in 1967 is still pushing 55+ years old if it's original - but the hardware families we run into here skew toward the slightly heavier-duty end of the mid-century range rather than the earliest, flimsiest stuff. When we get a call from Duarte, we're usually working on a door that was upgraded once already, sometime in the 80s or 90s, on top of a 1960s frame. That combination - newer door skin, older jamb and track bracket - is its own kind of repair.