Roofing permit in Laval: the calculator
Answer three questions. The calculator tells you whether the City of Laval requires a permit for your roofing work and calculates the fees, based on the schedule the City publishes for a residence.
The City's fee schedule
For a residence, the City of Laval's page on exterior residential renovation says that replacing the roof covering with the same material does not require a permit. Replacing it with a new material does. The City's Service de l'urbanisme (urban planning department) confirmed this to us in writing on October 14, 2026.
The City lists fees of $92 for the first $20,000 of work, plus $2.50 for each $1,000 or part of $1,000 above that. A $25,500 job therefore counts six more increments: $92 plus $15, or $107. The City announces a processing time of about 30 days, counted from a complete application. The application is made online, through Mon Dossier (the City's online portal).
The City does not define "same material". Going from shingles to sheet metal, or from a tar and gravel membrane to an elastomeric membrane, looks like a change of material. Confirmation is up to the Service de l'urbanisme. Repairing part of the roof is not mentioned anywhere on the City's page.
In a heritage area, changing the roofing materials of a principal building may require the approval of a PIIA (site planning and architectural integration program), in addition to the permit. The Code de l'urbanisme (Laval's urban planning code) exempts from the PIIA a replacement with the same material of a similar colour, or one that keeps or restores the original or traditional features, as well as renovation work on a flat roof.
This calculator gives a first answer. Only the City of Laval issues the permit and sets the exact fees. Schedule read on October 8, 2026 on laval.ca.
Embed this calculator
Broker, inspector, condo manager or neighbourhood association: you can put a link to this calculator on your site. It is free. We keep it up to date when the City changes its fee schedule.
<a href="https://toiture-laval.com/outils/permis-toiture-laval/en/">Roofing permit calculator for Laval</a>