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Poly-B Replacement in Toronto, ON
Find trusted poly-B replacement guidance and community-specific information for Toronto area homeowners.
Toronto · Poly-B
Poly-B in Toronto homes
Polybutylene plumbing was commonly installed in Toronto homes built between 1978 and 1998. If your home was constructed during this period, there's a possibility it contains poly-B pipes. Many insurance companies in Ontario now have specific policies regarding polybutylene plumbing, including potential surcharges or requirements for replacement. Learn more about poly-B →
Toronto has the smallest poly-B-era share of the four large cities in this directory, at 17.5% of occupied dwellings built 1981–2000 in the 2021 Census, but the largest count: 202,765 homes. Almost three in five of the city’s dwellings predate 1981. Inside Toronto, the City’s 2021 Neighbourhood Profiles put Milliken (67.8%), Highland Creek (62.3%) and Steeles (56.0%) at the top (City of Toronto Open Data); the community guides below use traditional names that can span several of those neighbourhoods.
Toronto’s distribution system carries a chloramine residual, formed from chlorine and ammonia (2022 water analysis summary). Installing or modifying a plumbing system requires a building permit from Toronto Building (City of Toronto), and plumbing is a compulsory certified trade in Ontario. The Toronto & GTA guide compares the 905 suburbs, explains condo responsibilities and lists published prices.
When Toronto's homes were built
The share of homes built during the poly-B years is the best single predictor of how common it is in a city.
Occupied private dwellings by period of construction · Toronto · 2021 Census
Census periods overlapping 1978–1998 (1981–1990, 1991–2000)
City-wide
The census groups construction years into periods, so 1981–2000 is the closest match to the 1978–1998 poly-B window.
Toronto Communities with Poly-B Information
35 community guides.
- AgincourtCommunity guide
- Bayview VillageCommunity guide
- Bloor West VillageCommunity guide
- CabbagetownCommunity guide
- Danforth VillageCommunity guide
- Don MillsCommunity guide
- Etobicoke City CentreCommunity guide
- Forest HillCommunity guide
- GuildwoodScarborough
- High ParkCommunity guide
- Lawrence ParkCommunity guide
- LeasideEast York
- LeslievilleCommunity guide
- Liberty VillageCommunity guide
- Little ItalyCommunity guide
- Little PortugalCommunity guide
- Long BranchCommunity guide
- MimicoCommunity guide
- Queen WestCommunity guide
- RexdaleCommunity guide
- RiverdaleCommunity guide
- RoncesvallesCommunity guide
- RosedaleCommunity guide
- Scarborough BluffsCommunity guide
- Scarborough Town CentreCommunity guide
- The AnnexCommunity guide
- The BeachesCommunity guide
- The JunctionCommunity guide
- The KingswayCommunity guide
- Trinity-BellwoodsCommunity guide
- WestonCommunity guide
- WexfordCommunity guide
- WillowdaleCommunity guide
- YorkdaleCommunity guide
- YorkvilleCommunity guide
Next steps
Identify
Use the photo guide and the interactive identifier to check if you have poly-B.
Identification guide
Estimate
Calculate replacement costs for your home size.
Cost calculatorGet help
Request a quote; the HAUSE desk connects Toronto homeowners with a local replacement contractor where available.
Request a quoteHAUSE desk · Request
Ready to Address Your Poly-B?
Get started with a cost estimate and, with your consent, an introduction to a local replacement contractor in Toronto.
- 01A person reads itThe HAUSE desk reviews the age of the home, what you found and how urgent it is.
- 02You get a replyBy email from info@hause.ca or by phone from 403-679-3100, with practical next steps.
- 03Matched where availableWith your consent, your request goes to a local replacement contractor so they can quote.
- 04You decideNo obligation. Use the guides and the cost calculator to compare what you are quoted.
Updated 2026-09-30