Lexington runs its own sewer system along with its water, gas and electric utilities, so a sewer line replacement here is new pipe for the private lateral running from your house to the City's line. About two-thirds of Lexington homes were built before 1980, which makes worn-out original laterals the norm rather than the exception. Call the number on this page to be connected with a local plumber in Lexington.
Old houses on a city-run system
Lexington Utilities' Water Resources division treats the city's wastewater at its plant at 500 Glendale Road, rated at 6.5 million gallons a day. That plant also accepts loads from haulers who pump out Davidson County homes that aren't on municipal sewer, so it serves more of the county than the pipes in town reach. Inside city limits, the street mains are the City's; the lateral crossing your yard is yours to maintain.
Age is the big local factor. The median home in Lexington was built in 1969, about 68% predate 1980 and around 14% predate 1940, according to ACS 2019-2023 estimates. The Lexington Residential Historic District, the Uptown district and the Erlanger Mill Village are the kinds of neighborhoods where original clay and cast iron sewer pipe is most likely still in the ground, and pipe that old rarely fails at just one joint.
Repair, line or replace?
| What the camera shows | Usual direction | Reasoning |
|---|---|---|
| A single broken joint in otherwise sound pipe | Section repair | No reason to dig up good pipe |
| Cracked clay that still holds its shape | Lining or bursting | New pipe without a full-length trench |
| Cast iron with heavy scale or holes | Replace | Corrosion keeps closing the bore |
| A low spot with standing water | Trench and relay | Bursting and lining can't change the grade |
| Roots at most joints | Replace | Cut roots grow back into the same gaps |
Signs worth acting on
- A main-line stoppage that keeps recurring
- The lowest fixture in the house backing up first
- A toilet gurgling when the washer drains
- Wet ground or sewer odor along the route to the street
Timing and permits
Roots grow hardest in warm months, so old root-damaged lines often give out in summer, and long wet spells push groundwater into open joints. If a camera has already shown the line is done, a dry stretch makes the dig and the yard repair easier. The City of Lexington's permitting office publishes a plumbing permit process sheet and takes applications through its online Permit Portal, run from City Hall at 28 W. Center Street. The page doesn't say whether the City or Davidson County performs the inspection, so the plumber should confirm that when filing.
Sewer Line Replacement questions in Lexington
My house is older. What is the old sewer pipe likely made of?
How does a plumber decide a sewer line needs replacing instead of a spot repair?
Who issues the permit for a new sewer line here?
Why do my drains slow down after a long rain?
More plumbing services in Lexington
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