Lewisville's public sewer comes through Winston-Salem/Forsyth County Utilities, and a sewer line replacement here means new pipe for the private lateral from your house to that system. Some rural-zoned parts of town aren't on municipal sewer, so the first question is which kind of home you have. Call the number on this page to be connected with a local plumber in Lewisville.

How sewer works in Lewisville
The Town has an agreement with the City-County Utilities Commission, which provides water and sewer service. When sewer is extended, the Commission covers 38% of the non-assessable costs, such as force mains and pump stations, and the Town pays the rest, according to 2014 council minutes. Lewisville also has a Rural Overlay where package treatment plants built to Commission standards are allowed, and some rural-zoned areas likely aren't on municipal sewer at all. If your home drains to a private onsite wastewater system, the work is on the building drain and the pipe to the tank rather than a lateral to a public main.
Housing is mostly from the 1970s through the 1990s. The median Lewisville home was built in 1987 and about 35% predate 1980, per ACS 2019-2023 estimates. That older third may still have clay or cast iron laterals, which crack and admit roots. Later homes mostly have plastic pipe, where sags and separated joints are more typical than root-choked joints.
Three ways to replace a lateral
| Approach | What's involved | Best suited to | Drawback |
|---|---|---|---|
| Excavation | A trench along the route and new pipe set to proper slope | Lines with a belly, or short runs through open yard | Lawn and plantings must be restored |
| Pipe bursting | A head breaks the old pipe while new pipe is pulled in behind it | Routes under drives, walks or big trees | Pits at each end; keeps the existing grade |
| Lining | A resin sleeve is cured inside the existing pipe | Cracked pipe that's still round and on grade | Can't correct sags or bridge a collapse |
Signs to look for
- Main-line backups that return after professional cleaning
- The lowest tub or shower filling with dirty water
- A wet, sunken or extra-green strip heading toward the street
- Odor near the cleanout or the crawl space
Timing
A dry spell is the easiest time to trench and reseed, and the inspection must happen before the line is covered, so leave room for it in the schedule. Lewisville plumbing permits go through the joint Winston-Salem/Forsyth County Inspections Division, which lists the town among the municipalities it serves; the plumber normally pulls the permit and books the inspection. If the line is backing up today, clearing it comes first, and a replacement can be planned once a camera shows the whole run.
Sewer Line Replacement questions in Lewisville
My home isn't on municipal sewer. Does this service still apply?
What pipe is used for a new sewer lateral?
My house is older. What is the old sewer pipe likely made of?
Who issues the permit for a new sewer line here?
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