Lanham is an unincorporated inner suburb on the Capital Beltway, with WSSC Water running the public sewer and issuing plumbing permits. Many homes here date to the late 1960s, so original sewer laterals are often due for repair. Call the number on this page to be connected with a local plumber in Lanham.

Lanham conditions
Lanham is fully built out, mixing residential neighborhoods with office and commercial employers near the New Carrollton Metro and Amtrak station. The median home was built around 1969, which means a large share of houses still have the drain lines they were built with, now well past fifty years old. Pipe from that era is often cast iron or clay. Cast iron rusts from the inside and forms ridges that catch grease and paper; clay joints shift and crack and let roots in. The Lanham mailing address also covers Seabrook and other areas beyond the community itself, but they share the same county and the same utility arrangement.
WSSC Water maintains the public mains and takes sewer emergencies at 301-206-4002. If only your house is affected, the private line is the issue. Prince George's County issues no plumbing permits itself; WSSC does, and it requires sewer service line repairs and replacements to be done by a plumber holding a WSSC license.
Comparing repair options
| Option | Best for | Drawback |
|---|---|---|
| Drain cleaning or jetting | Buildup or light roots in a sound line | Temporary if the pipe is cracked |
| Excavated spot repair | A single failed joint or short crack | Digging at that location |
| Cured-in-place liner | Multiple cracks or root entry with good slope | Not for pipe that has sagged or collapsed |
| Replacing the run | Widespread deterioration or collapse | Most disruption to yard and hardscape |
Signs to act on
- Laundry water backs up into a basement drain or utility sink
- Toilets flush slowly or need a second flush
- Drains in different rooms clog together
- Gurgling from a tub or floor drain
- Rust-colored flakes or bits of root show up after a cleaning
Timing
A line full of scale or roots often limps along until a big load pushes it over, such as guests over the holidays or a day of back-to-back laundry. Heavy summer storms can also expose cracks when groundwater gets in. If sewage is entering living space, treat it as urgent. If drains are slow but working, book a camera inspection soon; the repair options tend to be wider before a full backup or collapse.
Sewer Line Repair questions in Lanham
What are older sewer lines in this area usually made of?
Should I call the sewer utility or a plumber first?
Are wipes labeled flushable safe for my sewer line?
Is a backwater valve worth adding after a repair?
More plumbing services in Lanham
Sewer Line Repair nearby
Helpful guides
Sources
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