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Water heater replacement cost (2026)

By USA Expert Plumbing Editorial Team. Updated . 2 min read.

Short answer

In 2026, a like-for-like tank water heater replacement typically costs about $900 to $2,800 installed, depending on size, fuel and location. Tankless installs often run $1,400 to $5,600, and heat pump water heaters about $2,000 to $5,500. Code upgrades, gas line and venting work, and electrical upgrades add to the total.

In this guide
  1. Typical installed cost by type
  2. Upgrades that add cost
  3. Labor
  4. Repair or replace?
  5. How to compare quotes
  6. Tax credits and rebates in 2026

Replacement quotes vary widely because the job is more than swapping one tank for another. Knowing what each part of a quote covers makes it easier to compare them.

The ranges below are compiled from 2026 national cost guides for installed prices, including the unit and labor. High-cost metro areas and difficult installations land at the top of the range or above it.

Typical installed cost by type

TypeTypical installed cost (2026)Notes
Gas tank, 40 to 50 gallonAbout $900 to $2,800Straight swaps in lower-cost markets sit near the bottom
Electric tank, 40 to 50 gallonAbout $800 to $2,200No venting or gas work
Tankless (gas)About $1,400 to $5,600Converting from a tank often needs a larger gas line and new venting
Heat pump (hybrid electric)About $2,000 to $5,500Needs space, airflow and a 240V circuit

Upgrades that add cost

ItemWhy it comes up
Expansion tankOften required on closed plumbing systems with a pressure regulator or backflow preventer
Drain pan, seismic straps, relief valve dischargeCommon code items found during permit inspections
Gas line upsizingMost gas tankless heaters need more gas than a tank's line can supply
New ventingTankless and high-efficiency units usually cannot reuse the old vent
New circuit or panel upgradeHeat pump and electric tankless units may need more electrical capacity
Permit and haul-awayMany cities require a permit; disposal may or may not be included

Labor

Labor is usually 30 to 50 percent of the total. A same-location tank swap is typically a two to three hour job. Moving the heater, converting to tankless or changing fuel types takes longer and costs more.

Repair or replace?

A common rule of thumb: if a repair costs half or more of a new installed heater, and the tank is over about eight years old, replacement is usually the better investment. A leaking tank cannot be repaired.

How to compare quotes

  • Ask whether the quote includes the permit, haul-away of the old heater and any code upgrades.
  • Make sure every quote is for the same size, fuel type and efficiency level.
  • Ask about the warranty on the tank and on the installation labor.

Tax credits and rebates in 2026

The federal 25C tax credit for high-efficiency and heat pump water heaters ended for equipment placed in service after December 31, 2025. State and utility rebates may still be available, so check with your utility before you buy.

Common questions

Do I need a permit to replace a water heater?

In many U.S. cities you do. The plumber usually pulls it, so ask whether it is included in the quote.

Is there a federal tax credit for water heaters in 2026?

The federal 25C credit ended for equipment placed in service after December 31, 2025. State and utility rebates may still apply.

How long does it take to replace a water heater?

A like-for-like tank swap usually takes two to three hours. A tank-to-tankless conversion can take a full day.

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