Potomac homes in public sewer areas drain to WSSC Water's system, but Montgomery County designates some properties for private onsite wastewater systems instead, so it's worth confirming which you have. Either way, a sewer camera inspection shows what's wrong inside the drain line leaving the house and where it is on the lot. Call the number on this page to be connected with a local plumber in Potomac.

A quick look at Potomac
Potomac grew from farmland into an affluent suburb centered on Potomac Village, where Falls Road meets River Road, and older farmhouses still sit among the subdivisions. The median home was built around 1977. Large lots mean the building sewer can be long, often passing under driveways, patios and mature trees before it reaches the street. Montgomery County gives every property a water and sewer service category, and some categories are for private wells and onsite systems maintained by the owner.
What to do now
- Cut back on water use if a lower-level drain or toilet is backing up.
- Check whether the house is on public sewer. Your WSSC Water bill and the County's service category for your property will tell you.
- If sewage is surfacing from a manhole or in the road, report it to WSSC Water at 301-206-4002.
- For trouble inside your own line, call a plumber. They'll open a cleanout, clear the pipe if needed and push the camera through.
- Ask them to mark any defect on the ground and note its depth, which matters on long runs under hardscape.
Symptoms and what's usually behind them
| Symptom | Common cause |
|---|---|
| Lowest drain in the house overflows first | Blockage in the main line downstream of the house |
| Same clog returns every few months | Roots entering through an older joint |
| Gurgling from toilets when a tub drains | Partial blockage or a sag holding water |
| Wet or sunken patch along the pipe route | Crack or separated joint leaking into the soil |
What affects the cost
- Length of the run, which on a large Potomac lot can be considerable
- Whether a cleanout is available or the camera goes in another way
- Clearing a blockage before filming
- Locating and recording the findings
Repairs that follow need a WSSC Water plumbing permit and a plumber registered with WSSC. On a home that isn't on municipal sewer, the plumber handles the pipe from the house to the onsite system; the system itself is a separate specialty. Before any digging, ask whether a liner or another trenchless method could avoid tearing up a driveway or established landscaping, and make sure the quote lists the permit and surface restoration separately.
Sewer Camera Inspection questions in Potomac
My home isn't on municipal sewer. Is a camera still useful?
How do I know which utility handles sewer at my address?
Can the plumber find the problem spot from above ground?
Is a sewer scope worth ordering before I buy a house here?
More plumbing services in Potomac
Sewer Camera Inspection nearby
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