Illinois Water Heater Replacement Cost (2026)

How much does water heater replacement cost in Illinois? 2026 ranges run $945–$3.7k (avg $1.9k). Tank vs tankless, fuel type, and venting adjusted.

2026 Water Heater costs in Illinois

National average is $1,800. Illinois's regional cost index (1.05×) puts the typical water heater project at roughly $1,890. Low-end $945, high-end $3,675. Water heater replacement including unit and installation labor.

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Statewide housing context: Illinois

Median year homes were built: 1971 (reported margin of error: ±2 years).

Source: U.S. Census Bureau, 2020–2024 ACS five-year estimates, table B25035. Retrieved 2026-11-02. This is a statewide survey estimate, including on city pages.

A housing-stock estimate does not establish the age or condition of your home or its systems. Check your own records before planning maintenance or replacement.

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