Frequently Asked Questions

Many tank water heaters last around ten to fifteen years, depending on water quality, usage and maintenance. Tankless units often last longer when they are descaled regularly.

If the heater is relatively young and a part such as an element, thermostat or thermocouple has failed, repair usually makes sense. If the tank itself is leaking or badly corroded, replacement is the lasting answer.

Turn off the power at the breaker for an electric unit or set a gas unit to off, close the cold water supply valve, and move belongings away from the water. Then find out whether the leak is from a fitting or the tank itself.

For households that run out of hot water or want to free up space, tankless can be a great fit. It costs more to install, may need a larger gas line, and benefits from regular descaling.

Gas tanks recover quickly and suit homes that already have gas and venting. Electric tanks are simple and need no venting. Hybrid heat pump models are an efficient electric option where there is enough space.

In a closed plumbing system, heated water has nowhere to expand. An expansion tank absorbs that extra volume and reduces pressure on the heater, relief valve and fixtures.

Same day replacement is often possible for like for like swaps when access is straightforward and the right unit is available. Changes in fuel type or location usually take more planning.

Popping or rumbling is usually sediment at the bottom of the tank. Flushing can help, but on an older tank heavy sediment can signal it is nearing the end of its life.

Size for your busiest hour of hot water use rather than total daily use. For tankless units, size by how many fixtures run at the same time and the colder incoming water in winter.