Clinton is an unincorporated part of Prince George's County, so a business here uses WSSC Water for water, sewer and every plumbing or gasfitting permit, while the county's DPIE handles building permits. Most commercial calls involve drains, restrooms, water heaters and annual backflow tests. Call the number on this page to be connected with a local plumber in Clinton.

Warning signs at a Clinton property
- Kitchen or break room drains slowing a little more each week
- A wet spot in the parking lot or landscaping that never dries
- Water heaters that take longer to recover between busy periods
- Toilets or urinals that run on after flushing
- A jump in the water bill with no change in use
- Gurgling from floor drains after a heavy rain
Water, sewer and gas for commercial buildings in Clinton
WSSC Water supplies water and treats wastewater for Clinton, drawing from the Potomac River and from the Patuxent River reservoirs. Customer service is 301-206-4001 on weekdays, and water or sewer emergencies go to 301-206-4002. WSSC owns the service line from the main to the property line; from the property line into the building, the line belongs to the owner. A leak in the parking lot or under a sidewalk on your side of that line is a private repair.
Housing and commercial construction here is newer on average than inside the Beltway; the median home in Clinton dates to 1987. That generally means PVC drains and copper or plastic supply, but the water heaters, flush valves and pressure-reducing valves put in during those years are now well past their prime.
Prince George's County's DPIE issues no plumbing permits. WSSC issues and inspects them, with a satellite office inside DPIE, and its Permit Services line is 301-206-4003. A water heater replacement and any testable backflow device both need a permit. WSSC also requires a professional holding its license for service line repairs, repiping and all gas work, including furnace and gas water heater replacements.
Backflow assemblies on irrigation, fire sprinkler lines and chemically treated boilers have to be tested every year, and again after installation, repair or relocation, by a plumber with a WSSC license who is also a certified cross-connection technician. The county cross-connection line is 301-206-8601. Washington Gas serves the area; if anyone smells gas, leave the building, then call 911 and 844-WASHGAS (927-4427), option 1, from outside.
Cost factors
- The number of fixtures, restrooms or suites involved
- Locating work such as camera runs or leak tracing
- After-hours work so customers aren't disrupted
- Cutting into slab, drywall or pavement for access
- WSSC permit and inspection steps
When you call
Tell us the business type, what is failing and whether you can stay open. We'll connect you with an independent local plumber who handles commercial work in Clinton and the Camp Springs and Rosaryville areas next door. Ask about scheduling and how the visit is priced before work starts.
Commercial Plumbing questions in Clinton
Where does the utility's part of the water line end and ours begin?
Who may test or repair a backflow assembly on commercial property?
Can maintenance staff handle gas or water line work themselves?
Can commercial plumbing work be scheduled after hours or on weekends?
More plumbing services in Clinton
Commercial Plumbing nearby
Helpful guides
Sources
- WSSC Water: about us
- WSSC Water annual water quality report
- WSSC Water: cross-connection control and backflow
- Prince George's County DPIE: residential plumbing permits
- WSSC Water: service lines
- WSSC Water Permit Services: information for homeowners
- Washington Gas: natural gas safety
- Clinton housing by year built
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