Many Lewisville homes were built from the 1970s through the 1990s, which puts them squarely in the era of early copper and polybutylene supply pipe. A repipe replaces those lines with new PEX or copper, sometimes throughout the house and sometimes only where the original material is failing. Call the number on this page to be connected with a local plumber in Lewisville.
Lewisville homes and their water
Census survey data puts the median Lewisville house at 1987, with about 35% built before 1980. That's a town built mostly in the decades when copper was standard and polybutylene was gaining ground with builders. Homes near Shallowford Square and along Lewisville-Clemmons and Lewisville-Vienna roads cover that whole span.
Most of town gets water and sewer from Winston-Salem/Forsyth County Utilities under the Town's agreement with the City-County Utilities Commission. That water is soft, about 17.5 ppm average hardness in the 2025 report, and disinfected with chlorine. Lewisville also has a Rural Overlay, and not every rural-zoned property is on public lines; if yours is on a private well, tell the plumber, since the new system will start at the pressure tank.
WSFC's service line inventory, at cityofws.org/pipes, tracks what the lines from the main to each home are made of. It doesn't cover the pipe inside your house, and WSFC hasn't published exactly where its responsibility for the service line ends.
Options for a Lewisville house
| If you have | Typical approach | Why |
|---|---|---|
| Polybutylene throughout | Whole-house repipe | Its fittings tend to fail without warning, so replacing all of it removes the risk |
| 1970s copper with scattered pinholes | Partial or full, depending on how widespread | A few leaks in one area may be local; leaks all over usually aren't |
| Newer PEX with one failure | Spot repair | The rest of the system is usually sound |
Signs your pipe needs attention
- Gray plastic lines stamped PB at the water heater or under a sink
- Small leaks on copper, often on hot water lines first
- Water spots on ceilings below bathrooms
- An inspection report from a home sale that flags the pipe material
- Green or white crust on copper fittings in the crawl space
Any one of these alone can be a simple fix. Several together, in a house from the 1970s or 1980s, usually means the original pipe is reaching the end of its run.
Picking the right time
Repiping on your own schedule beats doing it after a ceiling comes down. Many owners book it before listing a house, during a planned remodel, or ahead of winter so crawl space lines aren't left exposed during a freeze. Plumbing permits in Lewisville come from the joint Winston-Salem/Forsyth County Inspections Division, and the plumber usually pulls it.
Repiping questions in Lewisville
What should I do if my house has polybutylene pipe?
What causes pinhole leaks in copper pipe?
Who issues the permit for a repipe here?
How long does a whole-house repipe usually take?
More plumbing services in Lewisville
Repiping nearby
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