Free Tool

Water Heater Replacement Cost Calculator

Answer a few questions to get a personalized cost estimate for your water heater replacement. All figures are 2026 national averages adjusted by your inputs.

Your Replacement Details

Replacement Type

Tank Size

State

Timing

Switching Fuel Type?

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Your estimate will appear here

Fill in your details and click Calculate

How This Calculator Works

Estimates are based on 2026 national average data for unit costs (major retailers, manufacturer pricing), labor rates (Bureau of Labor Statistics, regional plumbing industry data), and permit costs (municipal fee schedules). Regional adjustment factors are applied by state using average plumber hourly rates. Emergency premiums are based on industry-standard after-hours surcharges.

This calculator provides a planning estimate. Actual costs will vary. Always get at least 3 quotes from licensed plumbers in your area before committing to a project.

Understand Your Estimate Better

Cost by Tank Size

Detailed breakdown for every size

Gas vs Electric

10-year total cost comparison

Labor Cost Guide

What the plumber is charging for

State Rebates and Savings

Cut your net cost with state and utility rebates

Something here we have not covered?

Write to us. A person reads every email and we answer what we can, with the sources shown so you can check the figures for yourself. If a question would be useful to other readers we may publish an anonymised version on the site, and only with your say so.

Everything on this site is a general cost reference, not plumbing or gas advice. A leaking tank, a T and P relief valve that is weeping, or any work on a gas connection needs a licensed plumber on site, not an email.