Capitol Heights borders the District, but it's in Prince George's County and on WSSC Water, which owns the service line from the main to the property line. The rest of the line into the house belongs to the owner, and a plumber repairs leaks there. Call the number on this page to be connected with a local plumber in Capitol Heights.

Signs the line is leaking
- Water seeping up between sidewalk joints or along the front walk
- Pressure sagging at every tap at the same time
- A meter that spins with every fixture closed
- A musty, damp basement corner where the supply line comes in
- Bills that climb without any change in use
WSSC, not DC Water
Capitol Heights began in 1904 as a subdivision just beyond the District's eastern edge, where Northeast and Southeast Washington meet. Because it's in Prince George's County, WSSC Water provides water and wastewater service, and WSSC's plumbing permits and rules apply instead of DC's. On blocks right at Southern Avenue, confirm your provider on the bill. WSSC's emergency number is 301-206-4002, and customer service is 301-206-4001.
The median home in Capitol Heights was built in 1967, and the town's oldest streets are much older. Lines of that age can be galvanized steel that has narrowed with rust, or copper with worn joints. WSSC owns the line from the main to the property line, and the customer owns it from there into the house. Its What's Your Pipe Type? program and online inventory map show the recorded material for an address, and WSSC says some customer-side galvanized lines require replacement.
What affects the cost
- Pipe material. Galvanized lines generally need replacement rather than a patch.
- Small, tight lots. Narrow side yards and front steps can limit equipment and slow excavation.
- Hardscape. Concrete walks and driveways over the pipe must be cut and restored.
- Entry into the house. Older foundations need careful work where the new pipe passes through.
- Permits. WSSC, not the county, issues and inspects plumbing permits, and its rules call for a plumber holding a WSSC license.
When you call
Plumber Washington DC Pros is a referral service. Your call is passed to an independent local plumber who works in Capitol Heights. Tell them your address is in Maryland, describe where the water is showing and whether the meter moves with everything off. If water is running hard, shut the main valve first, and call WSSC directly if it's coming up in the street. The plumber can then locate the leak and explain whether a repair or a new line is the better fit for your house.
Water Line Repair questions in Capitol Heights
How do I know which water utility serves my address?
Who owns the water pipe between the street and my house?
Who is allowed to repair the water service line here?
Can a failing service line drop the pressure everywhere in the house?
More plumbing services in Capitol Heights
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