In McLean, Fairfax County's Wastewater Management program runs the public sewer and the homeowner maintains the private lateral from the house to the county main. If that private line is cracked, root-bound or sagging, a plumber repairs it. Call the number on this page to be connected with a local plumber in McLean.

McLean homes and the county sewer
McLean is an affluent inner suburb about nine miles from downtown Washington, spreading from Langley and Lewinsville out toward West McLean along Georgetown Pike and Old Dominion Drive. The median house dates to 1976, and the area mixes older homes on wooded lots with large houses built more recently. When a house is rebuilt on an older lot, the original lateral is sometimes left in place, so a new home can still drain through a decades-old clay or cast iron line. If you don't know the history of yours, a camera inspection is the quickest way to find out.
When sewage comes up while nothing in the house is running, Fairfax County says to call it first at 703-323-1211 so crews can check the public main. If the main is flowing, the blockage is in the private lateral, which is the owner's job. Fairfax County Land Development Services requires permits for new, repaired or relocated plumbing, filed through PLUS; your plumber can tell you whether the planned work falls under that.
What the camera finds, and the usual fix
| Camera finding | Typical fix | Effect on the property |
|---|---|---|
| Root intrusion at a few joints | Cut the roots, then line the pipe or repair those joints | Little or no digging if a liner fits |
| Single cracked or offset joint | Spot repair | One pit at the defect |
| Long run of cracked clay | Cured-in-place liner | Access through cleanouts |
| Sag holding standing water | Re-lay that section at proper slope | Open trench over the belly |
| Collapsed pipe | Replace the section | The most excavation |
Signs it's time to call
- Toilets gurgling when a sink or tub drains
- Backups in the lowest level of the house
- A cleared line clogging again within weeks
- Sewer odor on a lawn or along a long driveway
Planning around the season
A full backup needs attention right away. For a line that's merely slow, spring and fall are convenient for any excavation, since the ground is workable and lawns recover quickly. Large lots and long driveways can mean longer laterals, so share any old plat or survey you have; it helps the plumber estimate where the pipe runs.
Sewer Line Repair questions in McLean
Should I call the sewer utility or a plumber first?
What are sewer laterals under older homes here usually made of?
What happens to my lawn, driveway or patio during the repair?
Do I need a permit to repair a sewer line here?
More plumbing services in McLean
Sewer Line Repair nearby
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