Poly B replacement permits in Laval
What Laval actually publishes about permitting a residential repipe, verified August 6, 2026.
Is a permit required?
Not for the repipe itself: Laval's own permit table lists replacement or renovation of the plumbing system as requiring no permit, alongside bathroom renovations in place. Permits enter for added bathrooms, added rooms, or structural and layout changes.
Who can pull the permit
A hired contractor needs the RBQ plumbing licence and CMMTQ membership; homeowner DIY on an owner-occupied single-family home is legal provincially, with the RBQ declaration required.
Inspections
Through the RBQ regime for the plumbing; municipal process only where a renovation permit is triggered.
Fees
Where a permit applies, $92 for the first $20,000 of work plus $2.50 per additional $1,000 slice.
Timelines
About 30 days where a permit applies, with a status email within 5 business days.
Who administers it
Régie du bâtiment du Québec; Ville de Laval urban planning service for permit-triggering renovations.
What Laval doesn’t publish
In keeping with this site’s rule of never guessing, these details were not verifiable from Laval’s published materials and should be confirmed directly with the municipality:
- ?None material for the repipe case; confirm scope if adding fixtures or moving walls.
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 Laval city profile shows how much of the local housing stock sits in the Poly B era.
Sources for this page
- Ville de Laval residential renovation permit table
- RBQ plumbing obligations pages
Verified against Laval’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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