Does Section 23, Calgary have Poly B plumbing?
Moderate likelihood
The 30-second answer
Moderate likelihood. Homes in Section 23 were mostly built 1961 to 1980. Census data for the area around Section 23 counts 155 occupied homes, with roughly 34% dating to the 1978 to 1998 Poly B installation window. Only a look at the pipe confirms anything about a specific home.
When Section 23 was built
Statistics Canada’s 2021 Census records the construction period of every occupied home. Here is the distribution for the census area at the heart of Section 23, with the periods overlapping the Poly B era in red:
Occupied private dwellings by period of construction, 2021 Census. The 1961 to 1980 bucket only partially overlaps the Poly B era, which our scoring weights accordingly.
What this means in Section 23
Section 23 sits on the edge of the Poly B window, which makes it a neighbourhood of exceptions. Streets built a few years apart can differ completely: one phase plumbed in copper or early PEX, the next in Poly B. The build year of your specific home matters more here than the neighbourhood average, and a five-minute look at the pipe settles what no map can.
How to check a Section 23 home
Look where pipe is visible: the ceiling of an unfinished basement area, under sinks, at the hot water tank, and at the main shut-off. Poly B is usually grey and flexible and reads PB2110 on the pipe wall. The identification guide has photos and a room-by-room walkthrough, and the address checker gives a street-level read for any address. Don’t forget the buried water service line, which can be polybutylene even when the house isn’t.
If you find it
Don’t panic, and don’t ignore it either. Poly B fails from the inside as chlorinated water embrittles the pipe, so its condition can’t be judged by looking at it. The failure chapter explains the mechanism, the insurance chapter covers what it means at renewal time, and the cost guide gives honest Calgary replacement ranges. Selling or buying here? The disclosure chapter covers the rules that apply.
Nearby neighbourhoods
Sources for this profile
- Municipal open data: Calgary neighbourhood boundaries and predominant construction era
- Statistics Canada, 2021 Census of Population, period of construction of occupied private dwellings by dissemination area
This profile describes Section 23 as an area, never a specific address. High likelihood areas contain homes without Poly B; low likelihood areas contain renovated homes that have it. Confirmation is always visual.
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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