Most Upper Marlboro addresses sit outside the small incorporated town, in a postal area of about 77 square miles where water service varies: WSSC Water operates mains serving the area, while outlying rural properties may differ. Whatever the source, a leak on the private line into the house is a plumber's job. Call the number on this page to be connected with a local plumber in Upper Marlboro.
Upper Marlboro in brief
The Town of Upper Marlboro is the county seat, home to the Prince George's County Courthouse and just a few hundred residents. The surrounding postal area mixes horse-farm countryside with growing developments around Westphalia and Brock Hall. WSSC Water runs mains serving customers in the Upper Marlboro area, with an emergency number of 301-206-4002 and customer service at 301-206-4001. Rural properties farther out may not be on WSSC, so check whether you receive a WSSC bill.
WSSC removed all known lead pipes from its distribution system in the early 2000s, adds an orthophosphate corrosion inhibitor, and publishes a service line inventory that covers pipe material on private property. On newer homes in the growing developments, failures usually trace to a disturbed fitting or settling soil rather than worn-out pipe; on older farmhouses and the town's historic streets, the pipe itself may be at the end of its life.
What to do now
- If water is pouring into the basement, close the main shutoff where the line enters.
- If you're on a well, switch off the pump's breaker to stop it running.
- Turn off irrigation and outdoor taps, then watch the meter or the pump for activity.
- Water in the street or at a WSSC meter: call WSSC at 301-206-4002.
- Wet ground on your property: call a plumber to pinpoint the leak.
Symptoms and likely causes
| Symptom | Likely cause |
|---|---|
| Soggy line across a long front yard | Leak in the private service line |
| Well pump running with no water in use | Leak between the well and the house |
| Water bubbling at the meter | Meter or WSSC-side connection |
| Low pressure throughout the house | Leaking or restricted service line |
| Damp ground near a new fence or deck | Line nicked during construction |
Cost factors
- Run length. Large lots and farm properties can mean very long lines.
- Water source. Well lines and public service lines involve different fittings and access points.
- Ground and obstacles. Trees, fencing and paddocks along the route slow excavation.
- Repair or replace. A single bad fitting costs far less than a new run.
- Permits. WSSC issues plumbing permits throughout Prince George's County, and service line work requires a plumber holding a WSSC license; the town's own website points to county DPIE for building permits.
Water Line Repair questions in Upper Marlboro
How do I know which water utility serves my address?
What if my home gets water from a private well?
When does replacing the whole line make more sense than a patch?
What happens to my lawn, walk or driveway during the repair?
More plumbing services in Upper Marlboro
Water Line Repair nearby
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