Polybutylene Plumbing
Got gray plastic pipes? We inspect, assess and replace polybutylene with modern piping — and we'll tell you straight what you're dealing with.
The gray pipe in older homes
If your home was built roughly between the late 1970s and mid-1990s, it may have polybutylene supply lines.
Polybutylene (often called "poly" or "PB") is a flexible plastic piping that was widely installed in homes during that era. It's usually gray, sometimes blue or black, and you'll often spot it at the water heater, near the main shutoff, or at fixture stub-outs.
[Add your own detail here — how common it is in the homes you work on, what you typically find, and what you tell homeowners. Original, local detail is what ranks and what earns trust.]
Book an InspectionHow to spot it
A few things to look for. When in doubt, have it inspected.
💧 Gray flexible pipe
Most often gray, but it can also be blue or black. Flexible, not rigid like copper.
🔍 Stamped markings
[Describe the markings you look for when identifying PB — from your own field experience.]
🏠 Home age
Common in homes built roughly from the late 1970s into the mid-1990s.
🔧 Where to look
At the water heater, the main shutoff, and where pipes come out of the wall at sinks and toilets.
Why homeowners replace it
Polybutylene developed a reputation for failures, and many insurers and home inspectors flag it. Failures can happen at the fittings or in the pipe itself, and they're often hard to see coming — which is what makes it a concern for homeowners.
[Describe, in your own words, what you actually see in the field: how these systems tend to fail, what a failure costs a homeowner, and why you recommend replacement. Base it on your real experience, not on claims you can't support.]
It's fine to say polybutylene has a history of failures and that many insurers and inspectors flag it — that's well documented. It is not fine to guarantee that a specific home's pipes will fail, to invent failure-rate statistics, or to claim an insurer will drop coverage. Stick to what you can back up and what you see on the job, and let the inspection speak for itself.
Insurance & real estate
[Many homeowners ask about insurance and home sales. Explain only what you actually know from your market — and tell people to confirm with their own insurer or agent. Don't promise coverage outcomes.]
Polybutylene has a long and complicated legal history (including past class-action settlements that have since closed). Deadlines, eligibility and the current status of any claims program change over time, and none of it is something a plumbing contractor should be advising on. Do not state on this page that a homeowner "can still file a claim," quote settlement amounts, or promise insurance or manufacturer reimbursement. Point people to a qualified attorney or their insurer instead, and keep this page focused on what you actually do: inspect, assess and replace the piping. Also check your state's advertising rules for contractors before publishing any claim about outcomes.
Your replacement options
Fill in the piping you actually install and what each one means for the homeowner.
| Pipe Type | Best For | Notes | Est. Cost |
|---|---|---|---|
| [PEX / copper / CPVC — what you install] | [Best for...] | [Your notes] | [$X,XXX] |
| [Option 2] | [Best for...] | [Your notes] | [$X,XXX] |
| [Option 3] | [Best for...] | [Your notes] | [$X,XXX] |
Never publish a repipe price you can't honor. Repipe cost depends on the home's size, layout, number of fixtures, and access — give a range and be explicit that a real quote requires a site visit.
What a repipe looks like
- [Step 1 — your inspection and quote process]
- [Step 2 — how you protect the home and plan the work]
- [Step 3 — the repipe itself, and how long it typically takes]
- [Step 4 — drywall repair: do you do it, or is it separate?]
- [Step 5 — permits and inspection, if required in your area]
- [Step 6 — your warranty on the work]
How do I know if I have polybutylene?
+[Answer from your field experience — what you check and where. Recommend a professional inspection rather than a DIY guess.]
Does it have to be replaced right away?
+[Be honest here. Don't scare people into an emergency they don't have, and don't downplay a real risk. Explain how you assess urgency.]
How long does a repipe take?
+[Your typical timeline by home size, and whether the water stays on.]
How much does it cost?
+[Give a real range and explain what drives the price. Say plainly that a firm number needs a site visit.]
Will my walls be torn up?
+[Explain access holes, how you minimize them, and who patches the drywall.]
Can I still file a claim over polybutylene?
+We're plumbers, not attorneys, so we don't advise on legal claims — and the old class-action programs have their own history and deadlines. If you want to explore that side of it, please speak with a qualified attorney or your insurer. What we can do is inspect your system, tell you exactly what you have, and give you a clear quote to replace it.
Find out what's in your walls
Book an inspection and we'll tell you exactly what piping you have and what your options are.
Book an Inspection