3 services · Washington, D.C.
Water heaters in Washington, D.C.
Rowhouse basements also make heater access tight, which affects replacement time.
- Licensed local plumbers
- The problem explained before work starts
- Price agreed before the job begins

Statewide conditions
Water heaters in Washington, D.C.: what to know
D.C. rowhouses usually keep the water heater in the basement, often beside a floor drain and laundry, and many renovated rowhouses add basement units that put more demand on one heater or require a second.
Older heaters may share a chimney with the furnace or boiler, which has to be checked at replacement. Cold winter water also makes heaters work harder.
Replacements need a permit from the D.C. Department of Buildings. Adding an expansion tank and a drain pan is common.
- Climate
- Washington, D.C. gets periodic hard freezes and ice storms, often after mild spells, which catch exposed pipes off guard. Pipes in crawl spaces, exterior walls and garages are the first to freeze.
- Typical foundations
- Much of the housing is older rowhouses and townhomes, many with basements and original cast-iron or galvanized plumbing. Most common: basements.
Water heaters services
Water heater repair
If a gas water heater has no hot water, the pilot, thermocouple or gas valve is the usual cause; on an electric heater it's usually an element or thermostat. Those parts are repairable. A tank that leaks from the bottom can't be repaired and needs to be replaced.
Water heater replacement
A leaking tank or a heater past about 10 years old is usually replaced rather than repaired. A proper install includes a permit, correct venting (adjusted for altitude where needed), an expansion tank where required, a drip leg on the gas line and a relief valve discharge pipe.
Tankless water heaters
A tankless water heater heats water as it flows, so it doesn't run out, but it needs a larger gas line, its own venting and a unit rated for your elevation. Installed correctly and descaled regularly, it can outlast a tank heater.
Water heaters by city in Washington, D.C.
Local pages cover each city's water provider, permit office and housing. Not listed? Check your ZIP code below.
Water heaters questions in Washington, D.C.
Do I need a permit to replace a water heater in D.C.?
How long does a water heater replacement take?
How these problems start and how to choose between repair options is covered in the water heaters guide.
More plumbing in Washington, D.C.
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