City profiles

Poly B across Canada, city by city

Poly B was a national product, but its footprint varies enormously by city depending on when each one grew. These profiles cover Canada’s 119 largest municipalities using Statistics Canada’s 2021 Census build periods.

How to read these numbers

Each city shows the share of its occupied homes built during the 1978 to 1998 Poly B installation window, weighted the same way our address checker scores any address. City averages hide the street-level story: every city below contains subdivisions that are nearly all Poly B era and districts that entirely predate it. For Calgary, Edmonton and Kelowna, the neighbourhood profiles go a level deeper.

Ranked by Poly B era housing share

Sources for these profiles

  1. Statistics Canada, 2021 Census of Population, period of construction of occupied private dwellings, census subdivision level
  2. Statistics Canada, 2021 Census population and dwelling counts

Percentages weight the census construction-period buckets by their overlap with the 1978 to 1998 installation window. City figures describe housing stock, never a specific home.

Poly B Canada seal, published by Poly B Plumbing Guys

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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