Sunrise mixes 1970s and 80s neighbourhoods with newer construction and a large commercial base around Sawgrass, so the same week can bring a tired residential door and a loading bay that has to be running by Monday.
On the residential side the housing is largely of an age where the first full spring replacement is due.
Commercial openings in Sunrise are high-cycle: a service door that runs fifty times a day wears out in a fraction of the time a home door does, and the failure mode is the spring and the bottom bar.
Yes, both. Residential repair and replacement, and commercial rolling and overhead doors.
High-cycle openings: quarterly. A loading bay that runs dozens of times a day will not last a year without inspection.
Not always. Noise usually comes from rollers and hinges first; a banging at the end of travel points at the springs.