If your home was built or renovated between the late 1970s and mid-1990s, there’s a good chance it has polybutylene (Poly-B) plumbing. While it was once a popular choice, Poly-B has become a red flag for insurance companies—and for good reason. At PolyBExperts, we want to help you understand the risks and how replacing Poly-B can protect your home and your insurance coverage.
Why Insurance Companies Won’t Cover Poly-B Plumbing
Poly-B pipes were widely used in homes across Canada and the United States for decades. Unfortunately, over time, they’ve shown a high failure rate, especially at the fittings and in hot water applications. Here’s why insurance companies are wary:
Prone to Leaks
- Poly-B pipes become brittle as they age. Even a small hairline crack can turn into a major leak behind walls, causing expensive water damage.
Increased Claims
- Insurance companies have seen a surge of water damage claims tied to Poly-B plumbing. As a result, many providers either refuse to cover homes with Poly-B or significantly raise premiums.
No Longer to Code
- Poly-B no longer meets modern plumbing codes. If it’s still in your home, it’s seen as a liability for both safety and resale value.
The Risks for Homeowners
Having Poly-B plumbing in your home can create a range of headaches:
- Higher insurance premiums or outright refusal of coverage
- Difficulty selling your home—buyers see Poly-B as a ticking time bomb
- Risk of expensive water damage and mold growth
How a Repipe Can Protect You
The good news is there’s a reliable, insurance-friendly solution: PEX piping.
At Wonderflow Plumbing Solutions, we replace aging Poly-B systems with Uponor Aquapex PEX piping, a modern, durable material that’s fully up to code and backed by a 25-year manufacturer’s warranty. PEX is insurance-approved and won’t cause problems with your coverage.
Our repiping process includes:
- Careful removal of old Poly-B pipes
- Professional PEX installation
- Drywall repairs and painting to restore your walls
- Clean, respectful work by our trusted team (no subcontractors!)
Ready to Replace Poly-B?
Replacing your Poly-B pipes isn’t just about safety—it’s about protecting your home, your insurance coverage, and your peace of mind.