Can the main water line to my house be Poly B?
The straight answer
Yes. Polybutylene was buried as water service lines in the 1970s and 80s, those lines failed after roughly 25 years in documented municipal programs, and in most cities the stretch on your property is yours to replace.
The longer version
Yes, and it’s the Poly B most owners never think about. Buried polybutylene service lines went in through the 1970s and 80s, Ontario’s Durham Region replaced up to 20,000 of them after ~25-year failures, and municipal bylaws put the private-side pipe on the homeowner. Check the stub where your water line enters at the main shut-off. The service line page covers ownership, identification, and the insurance endorsement that helps.
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Grounding
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Published by Poly B Plumbing Guys
This library is maintained by the team that replaces Poly B every day across Alberta and BC. Red Seal certified plumbers, full remove-replace-restore service including drywall and paint, a 25-year warranty, and the completion certificate insurers ask for.
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