Water heater replacement cost calculator

Use the calculator above to get a realistic installed price range before you call for quotes. Choose the type of heater, your area and the extras your home is likely to need.

The base ranges come from 2026 national cost guides and include the heater and standard installation labor. Extras are added on top because they vary so much from house to house.

How to pick the right extras

Expansion tank

Often required when your home has a pressure regulator or a check valve on the main water line, which makes the plumbing a closed system.

Permit and haul-away

Many cities require a permit for water heater replacement, and disposal of the old tank is often an extra line item.

Gas line and venting

Most gas tankless heaters need a larger gas line and new venting when they replace a tank. These two items explain most of the difference between tankless quotes.

Electrical work

Heat pump water heaters need a 240V circuit, and electric tankless heaters may need several circuits or a larger panel.

Relocation

Moving the heater to a new spot adds new water, gas or electrical runs and a new drain for the relief valve.

Why quotes still differ

Access, local labor rates, the brand and warranty length all move the price. Use the estimate to spot a quote that is far outside the range, then ask what it includes. Our water heater replacement cost guide explains each part of a quote in more detail.