Plumbing
Water heater replacement in DC, Maryland and Northern Virginia
Water heater replacement in DC, Maryland and Northern Virginia starts at $2,000 for a like-for-like 40 to 50 gallon tank, installed by insured technicians.

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- Serving DC, Maryland and Northern Virginia
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We serve Howard, Montgomery and Prince George’s counties in Maryland, Northern Virginia, and Washington, DC.
- Washington, DC
- Montgomery County, MD
- Prince George’s County, MD
- Howard County, MD
- Northern Virginia
Pricing
How much does water heater replacement cost?
From $2,000 for a standard gas or electric tank of the same size and type you have now.
Pricing
What is included, and what costs extra?
Usually extra: a bigger tank, new gas piping, venting changes, an expansion tank if your system needs one, and carrying a unit up or down tight stairs.
How do I know I need a new water heater?
Rust-colored hot water, water pooling around the base, rumbling or popping, and hot water that runs out fast are the common signs. A leaking tank cannot be repaired; a bad thermostat or element often can. Tank age matters too: most tank heaters are built to last around 8 to 12 years.
How long does water heater replacement take?
A straight swap is typically done in a few hours on the same visit. Inspections are scheduled separately where the permit requires one.
Do I need a permit for water heater replacement in Maryland, DC or Virginia?
Usually yes. Fairfax County requires a permit even for a like-for-like gas replacement, with one inspection. In Maryland the permit comes from your county or city: Baltimore City requires a plumbing permit for this work, and homes inside Rockville city limits get permits from the City of Rockville.
Tank or tankless: which should I get?
A tank is cheaper up front and a simple swap. Tankless heaters save space and do not run out of hot water, but they often need a larger gas line and new venting, which adds cost. If your current tank works for your household, like-for-like is the fastest route.
What size water heater do I need?
Most homes with two to four people use a 40 or 50 gallon tank. If you regularly run out of hot water, the next size up may be worth it; tell us how many bathrooms and people you have.
FAQ
Water heater replacement FAQ
How much does it cost to replace a water heater in Maryland?
From $2,000 for a like-for-like tank. See the Maryland cost guide.
How much does it cost to replace a water heater in Fairfax, VA?
From $2,000. Fairfax County requires a permit; see the Fairfax cost guide.
Can I replace my water heater without a permit?
In Fairfax County and Baltimore City, no: both require a permit for this work.
Is a gas water heater more expensive to replace than electric?
Often slightly, because of venting and gas connections. Your quote will reflect your setup.
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