Why carriers flag it
Some carriers flag polybutylene after an inspection because published concerns include fitting and pipe failures that can lead to water damage. The underwriting rule varies by carrier, policy program, and property.
Insurance-required repair
polybutylene (poly-B) plumbing
Your insurer or inspection report identified polybutylene (poly-B) plumbing, often associated with homes built from the late 1970s through the mid-1990s. Use the date and exact requirement in the carrier letter rather than assuming a standard deadline.
What paperwork matters
- A licensed plumber’s repipe invoice describing the work and materials (PEX or copper)
- A pulled plumbing permit where one is required
- The passed inspection / permit sign-off
- A short letter confirming the old poly-B was fully removed/abandoned and the home repiped
Start from your city
Use the location where the work will be permitted and inspected. If your city is not listed, start a request anyway.
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Common questions
Will a repipe restore my insurance coverage?
A repipe and documentation may help the carrier review the condition, but every carrier sets its own rules and no plumber can promise reinstatement or continued coverage. Keep the invoice, permit, and inspection for your agent or carrier.
PEX or copper — which should I choose?
Both are accepted modern materials. PEX is typically faster and less expensive; copper is rigid and long-proven. A licensed repipe plumber will recommend based on your home, budget, and local code.
How much drywall gets opened up, and who repairs it?
A repipe requires cutting access points at walls and ceilings. Some quotes include drywall patch and paint and some don’t — confirm what’s included before you sign.
Does insurance pay for the repipe?
Do not assume it is covered. Work requested only for underwriting eligibility may be treated differently from damage caused by a covered loss. Ask the carrier for a written coverage decision; the cost range here is general context only.