Hot water repaired
and replaced across Richmond

Start with what feeds it. On tank supply, check the pressure pump is running and building pressure, because no water into the heater looks exactly like a dead heater from the bathroom. On an electric storage tank, check whether the circuit has tripped, and bear in mind that a controlled load tariff only heats overnight, so a circuit that dropped out yesterday will not show until the stored water runs out. On gas, check the supply is on and on bottles check they are not empty. Past that it is a licensed job, because the pressure and temperature relief valve is not something to experiment with.

On pump-fed supply that is very often the pump rather than the heater, and it is the single most misdiagnosed fault out here. An instantaneous gas unit will not fire until enough water is actually flowing through it, and it needs that flow maintained to keep firing. A pressure pump that has weakened with age, or one that is undersized for the run, can sit just under that threshold. The unit lights, then drops out as the flow sags, then relights. People replace a perfectly good water heater over this. Tell us it is pump-fed when you book and we will check the supply before condemning anything.

Yes, and nobody mentions it at installation. Rainwater carries fine sediment, leaf matter and grit that town water does not, and it collects in the inlet filters and screens on the way into the system. A blocked inlet filter restricts flow, which on a continuous flow unit produces exactly the lukewarm behaviour above, and on a storage tank simply slows recovery. It is a five-minute maintenance item that goes unattended for years. If you are on tank supply, that filter is the first thing worth looking at.

Because they are the most common reason a tank dies young. A storage water heater has a pressure and temperature relief valve, and the incoming supply should have a pressure limiting valve holding it down to what the tank is rated for. If that limiting valve has failed, the tank spends its life at a pressure it was never designed for, the relief valve dribbles constantly, and the cylinder fails years early. It is a small, cheap, wearing part and almost nobody looks at it.

Rusty hot water usually means the sacrificial anode inside the tank is spent and the cylinder itself has begun to go, which is the beginning of the end rather than a fault to repair. Hot water running out faster than it used to is normally sediment settling in the bottom of the tank, taking up volume and insulating the element from the water. On tank-fed supply that happens faster, because the water arriving carries more of it to begin with.

A storage tank is generally eight to twelve years, and it reaches the upper end when the pressure limiting valve has been doing its job and the anode has been changed somewhere along the way. Continuous flow gas frequently runs fifteen to twenty. Heat pumps are newer in volume so there is less long-run data and the manufacturer warranty is the practical guide. Anything failing well short of those numbers usually has a reason upstream of it.

A service call and diagnosis is $120 to $250. Common repairs, elements, thermostats, relief and limiting valves, generally land between $200 and $600. A replacement electric storage tank supplied and installed is around $1,200 to $2,200 depending on size, continuous flow gas $1,600 to $2,900, and a heat pump $3,000 to $5,000 before any rebate. On pump-fed supply we check the pump and the inlet filters as part of the diagnosis rather than as an extra.