Leawood has roughly 13,174 households, and the median household income here, at $184,976, runs well above the service-area-wide figure of $96,725. That income level tends to track with how doors get maintained - fewer houses running an original 35-year-old door into total failure, more replacements done proactively before a spring snaps with the car still in the garage. The service area as a whole spans 68,062 households and 40,266 owner-occupied houses with a median build year around 1980, so Leawood's 1989 median sits closer to the newer end of that range. The climate here is the same cold-moderate band as the rest of the area, which still means winter cold snaps are the single biggest stress test on a torsion spring in any given year, regardless of what decade the door was built.