Water Heater Replacement Cost in 2026

A standard tank water heater replacement averages around $1,347, typically ranging from $882 to $1,826 depending on tank size, fuel type, and local labor rates. Gas units tend to cost more than electric because of venting requirements, and a 50-gallon gas tank replacement can run $1,000–$3,100 or more.

Illustration of a plumber holding out a blank estimate sheet next to a newly installed water heater.

Likely Causes, Ranked

Electric vs. gas
Electric tank replacement (50-gallon) typically runs $700–$1,800 installed; gas runs $1,000–$3,100+ due to venting work.
Code-required upgrades
An older install may need updated venting, a new expansion tank, or updated strapping/seismic bracing to meet current code — all add to the bill.
Removal and disposal of the old unit
Usually bundled into the quote but worth confirming it’s included.

FAQ

Why did my quote come in higher than the average I saw online?

Averages don’t include code-required upgrades (venting, expansion tank, permits) that an older installation often needs to bring up to current standard — ask your plumber to itemize these separately.

Written by HotWater Decoded — water heater repair specialists. Technically reviewed by a licensed technician on our team.

Sources

Angi installed cost data (average $1,347, range $882–$1,826, based on 16,000+ tracked projects)
HomeGuide cost breakdowns by fuel type and tank size