Quick answerWater heater replacement in Spokane usually takes two to four hours for a like-for-like gas or electric tank: drain and remove the old heater, set the new one, connect water with a new relief valve and expansion tank where needed, reconnect the gas and venting or electrical circuit, and fill and test. Published Spokane data puts a typical installation around $1,199 to $2,118.
Updated September 2026
Repair or replace
A water heater that is leaking from the tank itself cannot be repaired; the tank has rusted through and replacement is the only fix. A heater that is simply not heating may need a thermocouple, gas valve, element or thermostat instead, and we check that before recommending a new tank. Age matters too: most tank heaters give roughly a decade of service, less on hard water without maintenance.
When replacement is the answer, we size it to the household, check whether the venting and gas line suit the new unit, and fit the code items that older installations often lack, such as an expansion tank, seismic straps and a properly piped relief valve.
What affects water heater replacement cost
Planning range: Published data for Spokane puts water heater installation at about $1,546 on average, with a typical range of $1,199 to $2,118. These are published market figures from 2026, given for planning, with the on-site estimate as the real price.
Water heater replacements we do
Gas tank water heaters
Gas tank heaters heat quickly and suit most families. We shut off gas and water, drain the old tank, disconnect the vent and gas line, and set the new heater on a proper base. The vent connector is checked for correct slope and clearances, and the chimney or liner inspected where the heater shares it with an older furnace. We connect the gas with a new flex connector, shutoff and sediment trap, light the burner, check for leaks and confirm the draft at the vent with the heater running.
Electric tank water heaters
Electric tanks need no venting and suit homes without gas, but they recover more slowly, so sizing matters. We check the circuit and breaker for the new heater's rating, replace the tank, and fill it completely before power is restored, since firing an element in an empty tank destroys it in seconds. Where a household regularly runs short of hot water, we talk through a larger tank, a heat pump water heater or a switch to gas where gas service is available.
Hard water and anode rod wear
Hard water leaves scale on the tank bottom, which makes the heater rumble and shortens its life, and it wears down the anode rod that protects the steel tank from corrosion. On a new heater we explain the anode and flushing schedule for your water. Flushing sediment once or twice a year and checking the anode every few years can add years to the tank. In very hard water areas a softener or scale inhibitor may be worth the cost.
Replacement options
| Gas tank | Electric tank | Tankless | |
|---|---|---|---|
| Recovery speed | Fast | Slower | Continuous within its flow |
| Venting | Required | None | Dedicated vent for gas |
| Upfront cost | Moderate | Lower | Highest |
| Best for | Most families with gas | Homes without gas | Long showers, limited space |
Hard water and water heaters around Spokane
Most of Spokane County drinks from the Spokane Valley-Rathdrum Prairie Aquifer, whose water carries mainly calcium and bicarbonate, and Vera Water and Power reports 12 to 18 grains of hardness per gallon in the part of Spokane Valley it serves. That scale settles in the bottom of a tank heater, where it causes rumbling and overheating of the steel. On replacements in those areas, we set up a flushing schedule from day one.
How a water heater replacement runs
- 1
Confirm replacement
Leak from the tank, or repair not worth it.
- 2
Shut off and drain
Gas or power off, water off, tank drained.
- 3
Remove the old heater
Disconnected and hauled away.
- 4
Set the new heater
On a proper base, strapped.
- 5
Connect
Water, relief valve, expansion tank, gas and vent or circuit.
- 6
Fill and fire
Tank filled before gas or power is turned on.
- 7
Test
Leaks, draft and temperature checked.
Signs your water heater is failing
Water heater questions
Can you replace my water heater today?
Often, yes. Common 40 and 50 gallon tanks are usually available same day.
How long does a water heater last?
Roughly ten years for a tank, less on hard water without flushing.
My heater is leaking. What should I do?
Turn off the cold water valve on top of the heater and the gas or power, then call.
Do I need an expansion tank?
Many homes do, depending on the water system. We check during the install.
Should I switch to tankless?
It suits some households. See our tankless page for the trade-offs.
Other gas & water heating services we handle
Garage Heater Installation
Sized, quoted and permitted.
Garage Heater Installation detailsElectric to Gas Furnace Conversion
Sized, quoted and permitted.
Electric to Gas Furnace Conversion in SpokaneHeat Pump Water Heater Installation
Sized, quoted and permitted.
How we handle heat pump water heater installationNo hot water? call now.
Call for water heater replacement in Spokane, WA at any hour.
