Plumbing
Water heater replacement in the Tri-Cities
When the tank is done, A-One sizes the new heater to your household, sets it with new connectors and straps, and checks every joint before we leave.
Chapter 01
How a tank tells you it is finished
A water heater gives warnings. Rust-colored hot water, a tank that rumbles every morning, moisture at the base, a temperature and pressure relief valve that keeps dripping, and repairs that come closer together all say the tank is near the end. A tank that leaks from the seam or the bottom cannot be patched.
Age matters, but condition matters more. Tri-Cities water is hard, so a heater fed years of mineral sediment and never flushed can fail early, while a well-kept one runs long past its first warranty. When we look at a tank we check the fittings, the anode rod, the sediment and the leak point, then tell you whether a repair still makes sense or the unit is done.

A gas water heater strapped to the wall and piped with new copper in a Tri-Cities garage
Choosing the size and fuel
Size comes from how your household uses hot water, not from the size of the old tank. We ask how many people live in the house, how many showers run in the morning and whether there is a soaker tub, then pick a tank that recovers fast enough. Too small runs out halfway through a shower. Too large heats water nobody uses.
Fuel follows what is already in the house. A gas heater needs the gas line, a vent and a gas control valve, and an electric unit needs the right circuit and elements. We also talk through tankless as an alternative. Where the heater sits matters too, because the space sets the size, the venting and how the drain is run.
Chapter 03
Install day and the first year
On install day the plumber shuts off the water and the gas or power, drains and removes the old tank, and sets the new one level. New supply stops, flex connectors and a fresh gas connection go on, the tank is strapped in place with seismic straps, and an expansion tank goes in where the system calls for one. The relief valve is piped to a safe drain.
We fill the tank before the burner or element comes on, then check every joint for weeps and bring the water up to temperature. In the first year, listen for rumbling, glance at the base for moisture, and flush the tank once a year, since Tri-Cities water leaves sediment behind. Keep the paperwork for the unit somewhere you will find it.
Water heater replacement for homes and businesses across Pasco, Kennewick and Richland. 2-Year Warranty on all service parts, with an optional 10 Year warranty on parts and labor.
PlumbingSince 1980
More from the A-One Plumbing crew
No hot water, a rumbling tank, rusty water or a puddle at the base. A-One tests the heater before replacing anything and tells you if it is worth repairing.
On-demand hot water sized to your house. A-One plans the install, services existing units and descales heat exchangers clogged by hard Tri-Cities water.
Leaking pipes, failed connectors, stubborn clogs and water heater trouble. A-One's plumbers find the cause, explain the options and repair it.