Rainbow's houses mostly went up around 1976, which puts this pocket ahead of the broader service area, where the typical home dates closer to 1984. That eight-year gap matters more than it sounds. A door and opener installed in the mid-1970s is a different animal from one installed in the 1980s or 90s - different spring configurations, different track widths, different opener mounting. With about 599 households out here, this isn't a dense subdivision built in one pass by one builder; it's a smaller, older cluster, and the doors reflect it. Median household income in Rainbow runs around $85,368, a bit under the wider area's $88,879, which is worth mentioning because it shapes the repair-vs-replace conversation we get into with a lot of these older units. The climate here is the same mild, temperate band as the rest of the region, so we're not chasing rust from coastal salt air or cracked panels from hard freezes. What we are chasing is age. A door that's pushing 50 years old has usually been through at least one opener swap and one spring replacement already, sometimes with parts that don't match the original hardware.