Do you need a permit to replace Poly B?
Almost always yes, but the details, who can pull it, what gets inspected, what it costs, are set city by city. This centre records what each municipality actually publishes, verified against municipal sources, with the gaps flagged honestly.
The 30-second answer
In every one of the 34 municipalities we’ve verified, a whole-home repipe requires a plumbing permit. The common exemptions, fixing a leak or swapping a fixture in place, never cover replacing the piping itself. Most cities offer a homeowner permit if you own, occupy, and do the work yourself; otherwise the licensed contractor pulls it. A reputable repipe contractor handles the permit and inspections as part of the job.
Alberta
Plumbing in Alberta is regulated under the Safety Codes Act. The National Plumbing Code of Canada 2020 has been in force province-wide since April 1, 2023, with no Alberta-specific technical variations. All seven Alberta cities profiled administer their own safety codes permits in-house.
British Columbia
Plumbing in BC follows the BC Building Code 2024, Book II (Plumbing Systems), administered through each municipality's own building and plumbing bylaws. Vancouver is the exception: it operates under its own Vancouver Building By-law, with the 2025 edition in force since September 2025.
- Vancouverpermit required · details
- Surreypermit required · details
- Langley (Township)permit required · details
- Langley (City)permit required · details
- Burnabypermit required · details
- Richmondpermit required · details
- Kelownapermit required · details
- Victoriapermit required · details
- Nanaimopermit required · details
Manitoba
Manitoba adopted the National Plumbing Code of Canada 2020 through the Manitoba Plumbing Code regulation, in force since January 1, 2024. Winnipeg administers permits through its Planning, Property and Development department.
Saskatchewan
Saskatchewan adopted the National Plumbing Code of Canada 2020 under the Construction Codes Act, in force since January 1, 2024. Cities administer their own plumbing permits, and plumbing is a designated trade in the province.
Nova Scotia
Nova Scotia adopted the 2020 national codes including the National Plumbing Code effective April 1, 2025, and the plumber trade is compulsorily certified in the province. Halifax handles plumbing within its building permit system.
Ontario
Ontario regulates plumbing under the Ontario Building Code (2024 compendium), and plumbing permits are issued as building permits by municipal building departments. The pattern across Ontario cities is consistent: like-for-like fixture swaps in the same location are exempt, while alterations to the plumbing system, which is what a repipe is, require a permit.
New Brunswick
New Brunswick adopts the National Plumbing Code of Canada 2020 province-wide under its plumbing licensing and inspection regulation. Plumbing is a licensed trade, and a provincial special homeowner's permit exists for owner-occupants of single residential buildings, though the big city permit counters state contractor-only, a discrepancy worth confirming locally.
Newfoundland and Labrador
Newfoundland and Labrador has no provincial residential plumbing permit program; plumbing lands on municipalities, which adopt the national codes through their bylaws. Plumber is a Red Seal trade but not provincially compulsory, though St. John's makes licensing effectively mandatory within the city.
Prince Edward Island
Prince Edward Island runs the strictest regime in Canada: the National Plumbing Code 2020 applies province-wide under the Environmental Protection Act, permits and inspections are provincial everywhere on the Island including inside Charlottetown, permits are issued only to licensed plumbing contractors holding trade certification, and there is no homeowner DIY route for a repipe.
Quebec
Quebec inverts the pattern of the rest of Canada. Interior plumbing falls under the Régie du bâtiment du Québec, not city hall: the Quebec Construction Code's plumbing chapter is based on the National Plumbing Code 2020 with Quebec amendments, any hired plumbing contractor needs an RBQ licence in the plumbing subclass and membership in the CMMTQ, and completed plumbing work must be declared to the RBQ. Homeowners may legally do their own plumbing in a single-family home they occupy, unlike gas or electrical work, but the work must still meet the code and be declared. Municipal permits mostly enter only when walls, structure, or room layouts change.
Why the permit matters for Poly B specifically
The permit and its inspections are part of the paperwork that changes your insurance position. Insurers asking about a completed replacement want to see that the work was permitted, inspected, and documented, alongside the contractor’s completion certificate. An unpermitted repipe can undercut exactly the proof you paid for. The insurance chapter covers the full documentation package, and the codes chapter covers what the plumbing code says about Poly B itself.
Sources for this centre
- Municipal permit pages, bylaws, and application guides for each city listed, verified August 6, 2026
- Government of Alberta, plumbing codes and standards pages
- BC Building Code 2024 Book II and the Vancouver Building By-law
Permit rules and fees change, and several cities publish less than you’d hope; every page notes what could not be verified. Always confirm with the municipality before starting work. Next scheduled re-verification: February 2027.
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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