Water heaters
& tankless.

Find the fault,
then fix the cause.

A water heater usually tells you it is going before it goes: water that runs out faster than it used to, rusty or cloudy hot water, popping and rumbling from the tank, a damp ring on the floor around the base. Repair is often the right answer, and the common failures are honest ones to fix, a heating element, a thermostat, a gas valve, a burner that will not stay lit, a leaking relief valve or a failed thermocouple. Replacement is the right answer when the tank itself is leaking, because the tank is the one part that cannot be repaired, and past roughly a decade a leaking tank is not worth chasing. Both tank and tankless units are handled, gas or electric, including converting a tank system over to tankless where the gas supply and the venting will actually support it, which is a question worth asking before the unit is bought rather than after. Because gas work is done under a separate state licence here, a gas heater is connected, vented and tested by the same person who fitted it rather than left for someone else. Sizing gets discussed against how many people actually use hot water in the house at once.