Polybutylene pipes and Florida insurance
Many Florida carriers will not insure a home with polybutylene supply pipes, and your policy will not pay to replace them. Repiping costs roughly $2,000–$8,000†, and it is treated as a known construction defect rather than a covered loss — so the cost sits with the owner.
What it is, and how to recognise it
Polybutylene was used for water supply lines in homes built roughly roughly 1978 to 1995†. It was cheap, flexible and quick to install, and it degrades from the inside when exposed to chlorinated water — so failures happen without warning, inside walls, in pipe that looks fine from the outside.
- Colour. Usually grey, sometimes blue or black. Distinctly dull rather than glossy.
- Markings. Look for “PB2110” stamped on the pipe.
- Where to look. At the water heater, under sinks, at the main shut-off, and where pipes enter from a wall or ceiling.
- What it is not. Grey plastic drain pipe is a different thing entirely. Polybutylene is supply — the pressurised side.
Visible polybutylene at the water heater and copper elsewhere usually means someone replaced the accessible runs and left the rest inside the walls. Insurers ask whether the home has polybutylene, not whether some of it was swapped. A partial repipe often gives you the cost without the benefit — confirm what is actually behind the drywall before assuming you are clear.
Why insurers treat it the way they do
It is not a judgement about your maintenance. The failure mode is internal degradation, which means the pipe gives no warning and the resulting loss is a water claim inside finished space — the most expensive kind of non-catastrophic claim there is. A $75–$150† four-point inspection will identify it, and on an older home that inspection is how carriers find it.
| Question | Usual answer |
|---|---|
| Will an insurer write the home? | Some will, many will not, and those that do may exclude water damage |
| Will insurance pay to replace the pipe? | No — it is a defect, not a covered loss |
| Will it pay for damage when the pipe bursts? | Often yes, if you are insured and the loss is sudden — but this is where exclusions bite |
| Does it fail a 4-point? | Yes, on most carriers’ criteria |
| Does it have to be disclosed when selling? | Yes, if you know about it |
What repiping actually involves
A full repipe replaces supply lines with PEX or copper, typically running $2,000–$8,000† depending on size, number of bathrooms, slab or crawlspace, and how much wall has to be opened. That figure normally covers the plumbing but not the drywall repair and repainting afterwards, so ask specifically whether the quote includes making good.
- It requires a licensed plumbing contractor and a permit. Anyone offering to do it without either is a problem.
- Get the permit closed with a final inspection — that paperwork is what proves it to your next insurer.
- Keep the invoice and the permit. “It was repiped” without documentation carries little weight on an application.
If you are buying a home that has it
- Get an insurance quote before your inspection period ends. This is the whole point. Find out whether the house is insurable, and at what price, while you can still walk away.
- Price the repipe properly, including drywall repair, and negotiate it rather than assuming you will get to it later.
- Check whether a previous partial replacement happened and what remains.
- Do not treat a low asking price as the discount. If the home cannot be insured, the price is irrelevant.
Related
Common questions
Can I insure a Florida home with polybutylene pipes?
Sometimes. Many carriers decline outright, and some that write the policy exclude water damage. Get a quote on the specific address before committing — an insurable home and a nominally cheaper one are different things.
Will homeowners insurance pay to replace polybutylene pipes?
No. It is treated as a known construction defect rather than a sudden loss, so replacement sits with the owner. Damage caused when a pipe bursts may be covered, subject to your policy’s exclusions.
How do I know if I have polybutylene pipes?
Look at the supply lines at the water heater, under sinks and at the main shut-off. Polybutylene is usually dull grey, sometimes blue or black, and often stamped PB2110. Grey drain pipe is a different material.
How much does it cost to repipe a Florida house?
Roughly $2,000 to $8,000 depending on size, number of bathrooms and how much wall must be opened. Ask whether the quote includes drywall repair and painting, because it frequently does not.
Do I have to disclose polybutylene when selling in Florida?
Yes, if you know about it. It materially affects value because it affects insurability, and a buyer cannot readily observe pipe inside walls — which is exactly the test the disclosure duty applies.
Carrier treatment of polybutylene varies and is set by each insurer’s own underwriting guidelines, which are not public. Costs are market estimates, not quotes. Confirm with a licensed plumbing contractor and a licensed insurance agent.