Hollywood runs from the beach to the Everglades edge, and the housing changes with it: older homes near the ocean and downtown, mid-century blocks inland, and newer construction west of I-95.
Near the beach, salt is the dominant factor. Inland, it is age.
Coastal doors lose their bottom seal and their sensor terminals first; the panels often still look good. That is a hardware and seal problem, not a reason to replace the door.
Yes, from the beach to the western edge, with free estimates.
Twice-yearly lubrication with the right product, cleaning the sensor terminals, and replacing the bottom seal before it cracks. The panels usually outlast the hardware.
In the High Velocity Hurricane Zone, yes, and the door's documentation has to match what is installed.