Water heater replacement cost in Washington, DC

How much does a water heater replacement cost in Washington?

A water heater replacement in Washington typically costs $1,890 for a 40-gallon electric tank, installed. The full range for that same straightforward swap is $1,480 to $2,540. That includes the unit and a normal replacement of the same fuel, in the same spot. It does not include a re-pipe, a new gas line, or a panel upgrade.

Electric, gas, heat pump, or tankless in Washington

The national starting point for that electric tank is $1,750 before local labor. Washington labor is 1.18 times a national crew. About 42% of the national price is labor, so the city changes the crew more than the box. Versus a crew priced at 1.00, that adds about $140. The same labor rate is applied to a 40-gallon gas tank, a heat-pump water heater, and a gas tankless. Those three are in the table. A heat pump costs more to install and usually less to run. A tankless costs more because the vent and the gas line often have to change.

What a fair bid looks like in Washington

Use the 1946 house of about 1,400 square feet as the example. A first-floor or garage closet swap, same fuel, existing vent and pan left in place, is the typical price of $1,890. The low price is that job with easy access and no code surprise. The high price is the same heater when the quote adds a drain pan, an expansion tank, a flue correction, or a second trip. If a quote says it is the easy swap and sits far above $2,540, ask which of those items is in it.

English-basement tanks with poor combustion air are the high column. A like-for-like swap in a utility closet with a clear flue stays typical.

Running cost is not the install price

At 16.9¢ per kilowatt-hour, an electric water heater keeps charging you every month. A gas heater charges you mostly once, at install. Pepco serves the District. The planning rate sits almost on the national figure; labor and access do not. This page does not invent a payback or a rebate. Check what your utility actually offers before you treat a heat pump as free money. Reviewed 2026-09-01. Planning model: IECC climate zone, degree-day normals, a metro labor factor, and a residential rate used only for operating-cost context. Installed costs start from published national ranges and scale the labor share. Rents are planning medians, not listings. Reviewed 2026-09-01.

If you rent in Washington

You almost never replace a water heater yourself without the owner. The price is the same either way. The decision is not. Use this range to read a landlord's quote. A claim that a standard tank is an emergency several times the high number is a reason to ask for the scope in writing, not a reason to hire a plumber in secret.

Before you call a plumber in Washington, match the quote to one row in the table. Typical for the electric tank is $1,890 at labor 1.18, on a 1946 home of about 1,400 square feet. Reviewed 2026-09-01. If the quote is a different fuel or a different location, it is a different job.