Poly B replacement permits in Mississauga
What Mississauga actually publishes about permitting a residential repipe, verified August 6, 2026.
Is a permit required?
Yes for plumbing system work: adding, removing or relocating fixtures and installing, replacing or repairing drainage all require a permit, with same-location fixture swaps exempt. Water distribution piping isn't named explicitly on either list, though the fee schedule prices water piping work, so confirm repipe scope with the city.
Who can pull the permit
Applications go through the city's ePlans portal; the city doesn't publish owner-versus-contractor rules for plumbing, so confirm when applying.
Inspections
Unusually well documented: below-slab drain inspection, plumbing rough-in once piping is installed between the studs and before framing inspection, with drains, vents and water piping checked, then a plumbing final with fixtures operational. Nothing may be covered before inspection. Booked online with the permit number.
Fees
The 2026 schedule prices plumbing review at about $42 per fixture, inside piping at $1.70 per linear metre, and domestic water riser replacement at $9.18 per riser per floor. Confirm the minimum permit fee with the city.
Timelines
No published processing timeline; confirm with the city.
Who administers it
City of Mississauga Building division; ePlans portal, or 311.
What Mississauga doesn’t publish
In keeping with this site’s rule of never guessing, these details were not verifiable from Mississauga’s published materials and should be confirmed directly with the municipality:
- ?Who can pull the permit.
- ?Minimum permit fee.
- ?Processing timeline.
- ?Explicit water distribution piping wording.
How this fits the bigger job
The permit and inspection record is part of the documentation package your insurer will want after a repipe, alongside the completion certificate. The insurance chapter covers that package, and the cost guide covers what the whole job runs. The Mississauga city profile shows how much of the local housing stock sits in the Poly B era.
Sources for this page
- City of Mississauga building permit and inspection pages; Building By-law Schedule B fee schedule
- Ontario Building Code
Verified against Mississauga’s published municipal materials on August 6, 2026. Rules and fees change without notice; confirm with the municipality before starting work. This page is not legal or code advice.
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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