Fisher Island sits across Government Cut from Miami Beach and is reached by the ferry that runs from the terminal at the western end of the MacArthur Causeway. There is no ordinary street route on or off the island, which changes how a water heater job is planned long before anyone opens a closet door.
Everything crosses on the boat
Tools, a replacement tank and a hand truck travel with the technician, so the size of the unit and the widths of the doors on the building decide what can go across in one trip. Deliveries are timed to the same crossing and the building is told what is arriving and when. A job that would be a single morning on the mainland becomes a day planned around a timetable, and the old unit has to leave the island by the same route it came in.
Low-rise blocks, shared risers and salt
Most of the housing is low-rise and mid-rise condominium buildings set around the marina and the golf course, with a small number of houses. In those buildings the heater lives in a stacked mechanical closet, sometimes on a service balcony, and usually shares a riser with the homes above and below. The isolation valve and the pressure-reducing valve then matter as much as the appliance. A building whose riser sits at the top of its range will keep weeping through a relief valve however new the tank is, and replacing the valve alone will not settle it.
Salt is constant on the marina side. Terminal boxes, gas connections and the flue collar of an exterior closet corrode first, and a unit that reads clean at the front can have a rusted collar at the back. Those parts are inspected rather than assumed.
Planning the paperwork
A same-for-same replacement, a change of fuel type and a first installation are three different jobs, and on a private island the building's own rules sit on top of the code requirements. Management approval, a service lift slot and the ferry timing all have to line up before a tank goes across, which is worth arranging before the old unit is drained. Start on the contact page, and note the building, the floor and whether the unit is gas or electric.