Upper Marlboro is the Prince George's County seat, but the incorporated town is tiny and most Upper Marlboro addresses sit in a much larger unincorporated postal area. WSSC Water serves the town and much of the area and issues plumbing and gas permits, while DPIE handles building permits; outlying rural parcels may differ. Call the number on this page to be connected with a local plumber in Upper Marlboro.
Upper Marlboro in brief
The town has 652 residents and is dominated by county government, including the Prince George's County Courthouse along Main Street (MD 725). The Upper Marlboro postal area covers about 77 square miles, from Westphalia and Brock Hall to horse-farm country, with The Show Place Arena and growing developments along US 301 and MD 4. The median home dates to 1982. Commercial calls range from offices and restaurants near the courthouse to event venues, barns and farm buildings.
What to do now
- Close the nearest valve or the building main to stop the water.
- If anyone smells gas, get everyone out, then call 911 and your gas utility from outside. Washington Gas and BGE both serve parts of the county, so check the bill; propane users call their supplier.
- Report a main break or sewer overflow in the road to WSSC at 301-206-4002.
- If the property isn't billed by WSSC, it likely has its own water or wastewater system; say so when you call.
- Call the number on this page to reach a plumber who takes commercial work.
Symptoms and likely causes
| Symptom | Likely cause |
|---|---|
| Restrooms backing up during an event | Building drain or sewer line partly blocked |
| Hydrant or yard line in a barn freezing | Exposed line or failed frost-free valve |
| Irrigation backflow device leaking | Worn checks or relief valve needing rebuild and retest |
| Water heater relief valve discharging | Excess pressure or temperature, or a worn valve |
| Pressure swings on a rural property | Pump or pressure tank problem on a private system |
WSSC's cross-connection program requires testable assemblies on fire sprinkler lines, irrigation and chemically treated boilers to be tested every year and after installation, repair or relocation, only by plumbers holding a WSSC license who are certified cross-connection technicians. The county cross-connection line is 301-206-8601. Prince George's County states that WSSC issues all plumbing permits; permits are generally not needed for like-for-like fixture swaps, but water heaters and testable backflow devices need one (Permit Services 301-206-4003). Service line repairs and gas water heater replacements must be done by a plumber or gasfitter with a WSSC license. The town's website points to DPIE for permitting.
Cost factors
- Distance and access on large rural parcels
- Public utilities or a private system
- Number of buildings, restrooms or fixtures
- Diagnostics before repair
- Scheduling around court days, events or business hours
- Permits and inspections
Commercial Plumbing questions in Upper Marlboro
What if the property is not on public water or sewer?
Is there a separate building permit step for commercial plumbing work?
What winter problems hit commercial buildings in this area?
Can commercial plumbing work be scheduled after hours or on weekends?
More plumbing services in Upper Marlboro
Commercial Plumbing nearby
Sources
- WSSC Water: Upper Marlboro water main work
- WSSC Water annual water quality report
- WSSC Water: cross-connection control and backflow
- Prince George's County DPIE: residential plumbing permits
- WSSC Water Permit Services: information for homeowners
- Maryland Office of People's Counsel: your local gas companies
- Upper Marlboro housing by year built
- Upper Marlboro, Maryland (Wikipedia)
Last updated: