Look under sinks and at the water heater. Gray or blue flexible pipe stamped PB2110 is polybutylene. If you find it, plan on replacing it; the sooner, the less chance of a failure flooding the house.
Signs you need polybutylene pipe replacement
- Gray flexible supply pipe under sinks
- Pipe stamped PB2110
- Plastic or copper crimp rings at fittings
- Insurance or a home inspector flagging it
- Leaks at fittings in a house built 1978 to 1995
How we handle it
- Confirm the materialWe identify polybutylene and where it runs.
- Plan the repipeRoute, material and timing to fit your schedule.
- Replace the linesAll polybutylene removed or abandoned and new lines installed.
- PaperworkDocumentation of the replacement for your insurer or a future buyer.

What polybutylene pipe replacement usually costs around Greenville
| Job | Typical range |
|---|---|
| Polybutylene repipe, crawl space home | $4,650 to $8,150 |
| Polybutylene repipe, slab home | $6,250 to $10,890 |
| Polybutylene service line replacement | $1,690 to $4,250 |
Ranges reflect common jobs in Greenville and nearby towns. Access, materials and the hour of the call change the final number, and you get an exact price before work starts. Compare prices across all services.
What you can do before we arrive
Check under every sink, at the water heater and where the line enters from the yard. Take a photo of anything gray with a PB2110 stamp and send it with your call.
What we see in Upstate homes
Many of the subdivisions built around Greenville, Taylors, Greer and Mauldin in the 1980s used polybutylene. We still find it often, sometimes alongside a newer copper line where a past leak was repaired.
Keeping it from coming back
Once replaced, keep the documentation with your home records. Insurers and future buyers often ask for proof that polybutylene is gone.
Questions about polybutylene pipe replacement
Is polybutylene really that bad?
It does not fail in every house, but the risk rises with age, and when fittings fail they can release a lot of water.
Will replacing it lower my insurance?
Some insurers offer better terms or will only write a policy after it is replaced. Ask your agent.
Can you replace only part of it?
Partial replacement is possible, but the remaining polybutylene keeps the same risk.
Areas we cover for polybutylene pipe replacement
Plumbcraft sends polybutylene pipe replacement crews from Greenville and Belton across the Upstate.
