Detached homes, real basements, and bigger scopes
Compared with the rest of the city, Staten Island work looks suburban: detached single-family homes with driveways, side yards, full basements, and equipment you can actually reach. New Dorp and Great Kills run large stretches of postwar and later housing where the original systems have hit replacement age. Tottenville trends toward larger lots and newer construction. St. George mixes older housing with denser, hillier streets where access is tighter than the rest of the borough suggests.
Accessible equipment changes the economics of the call. Diagnostics take less time, replacement quotes are easier to give on the spot, and system-swap work — furnaces, water heaters, panels, full roof jobs — makes up a larger share of revenue than it does in the denser boroughs.