How can I tell if my Calgary home has Poly B?
The straight answer
Start with the year: Calgary homes built or replumbed 1978 to 1998 are the candidates, and about 28 percent of the city’s housing stock sits in that window. Then confirm with your eyes: grey flexible pipe stamped PB2110 at the water heater, under sinks, or along basement joists.
The longer version
Two steps. First, the era: the install window is roughly 1978 to 1998, about 28 percent of Calgary’s housing stock dates to it, and Alberta’s government estimates around 148,000 Poly B homes provincewide. Check your street in seconds with the address checker or your area’s page in the Calgary neighbourhood profiles, all 261 of them. Second, the pipe itself: grey, flexible, stamped PB2110, easiest to spot at the water heater, under the kitchen sink, or along basement joists. The identification guide shows exactly what to look for, with real job photos.
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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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