Water Heater Replacement Cost Calculator
Planning to replace your water heater? Get a ballpark installed-cost range in seconds — based on the type, fuel, size, and how involved the job is. Then get a real quote from a licensed plumber.
Your water heater
A ballpark based on typical U.S. pricing. Permits, venting or gas-line changes, code upgrades, and your local market all move the final number.
Are you the plumber? MainLine Pro quotes a job like this off your own price book, gets it signed on the spot, and invoices it before you leave the driveway. Built for plumbers and nobody else.
Join the WaitlistWhat goes into a water heater replacement cost
The price to replace a water heater is really two numbers added together: the unit itself and the labor to install it. A few things move both:
- Tank vs. tankless — tankless units cost more to buy and take longer to install, but they last longer and heat water on demand.
- Gas vs. electric — gas units and their venting typically cost more than electric to install, though operating costs differ too.
- Size — a bigger tank, or a tankless unit sized for a larger home, costs more.
- Installation complexity — a straight like-for-like swap is cheapest. Relocating the unit, upgrading venting or gas lines, adding an expansion tank, or bringing an old install up to code all add labor and materials.
Use this as a planning estimate, then get a firm quote from a licensed plumber who can see your setup. Prices vary quite a bit by region.
This calculator provides a rough estimate for planning only. It is not a quote and not professional advice.