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Water Heater Making Noise? What Popping, Rumbling and Hissing Mean

By Done Wright Plumbing · Updated 2026-11-05

Water heaters are normally quiet. New noises are the tank telling you something.

Popping or rumbling

Sediment on the bottom of the tank traps water that boils and bursts through. A flush fixes it; left alone, the tank overheats and fails early.

Hissing

Water dripping onto the burner, or a leaking T&P valve. Both need a look from a water heater repair technician.

Ticking or tapping

Usually pipes expanding — harmless — but check for heat traps or loose straps.

Screeching

A partially closed inlet valve or a failing valve seat restricting flow.

When it is time to replace

Tanks over 10–12 years, rust-coloured hot water, or moisture around the base mean water heater replacement. Many California homeowners use this moment to upgrade to a tankless water heater. Call (888) 809-6756 for same-day help.

Related Services

Water Heater Repair

No hot water, water heater leaking, pilot light out or a tank that rumbles and pops — Done Wright Plumbing repairs gas, electric and tankless water heaters in California the same day.

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When your water heater leaks or dies, you want hot water back today.

Tankless Water Heater Installation

Tankless water heaters deliver endless hot water, cut energy use by up to 30% and free up closet space.

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