Every house has its own price
The City writes that architectural styles in the Duvernay hub are diverse, and it explains this by a wide range of construction periods. It says nothing about the roofs.
It is better not to rely on the price a neighbour paid, or on an average price, for roofing in Duvernay. Only quotes prepared for your house, after a visit, can be compared with each other.
What a written quote should name
A one-line quote allows no comparison. Ask each roofer to detail five things:
- The covering installed, with its category and product line.
- What is removed, layer by layer.
- What is replaced around vents, walls and the chimney.
- The price of a sheet of roof deck, if one has to be changed once the roof is open.
- Both warranties, the manufacturer's and the contractor's, with their length.
Then put the quotes side by side. A line present in one and missing from another often explains the gap better than the total.
The line on material and permit
Have a sixth line added: is the new covering the same material as the old one? For a residence, the City requires no permit if it is the same, and requires one if the material is new. The City does not define what same material means. If two roofers disagree on the answer, ask the Service de l'urbanisme (the City's urban planning department).
When a permit applies, the City gives an approximate processing time of 30 days once the file is complete, and fees of $92 for the first $20,000 of work, with a per-bracket supplement detailed on the area page. The quote should say who files the application and confirm that work waits for the permit.
What the City's list contains
The City of Laval's list of programs and grants contains nothing for the roof of an ordinary residence. The list contains nothing for white or green roofs or for gutters either. The City lists a revitalization program for heritage buildings, whose conditions should be checked with the City.
Insulation assistance
The programs that involve the roof target insulation, not the covering. These programs come from the Government of Quebec and Hydro-Québec.
Their conditions change. Read them on the official sites before counting on them. If you are thinking of insulating, tell the roofers at the visit.
Before signing
Check each contractor's licence in the public register of the Régie du bâtiment du Québec (RBQ, Quebec's building authority).
Do not climb up to check the work yourself. Ask for photos of the roof deck, the membrane and the flashing, taken during the work.
Frequently asked questions
Does the price a Duvernay neighbour paid apply to my roof?
It is better not to rely on it. In Duvernay, the City describes detached single-family homes of diverse styles, built in varied periods, and it does not describe their roofs. Only a quote prepared for your house gives your price.
Does the City of Laval subsidize roof replacement?
Not for an ordinary residence, according to its list of programs. The City lists nothing for roofing, white or green roofs or gutters. One program targets heritage buildings.
Who applies for the permit, me or the roofer?
Agree on this with the roofer before signing. Have it written in the quote, with a statement that work does not start before the permit is received.
Can I insulate while the roof is being redone?
Assistance from the Government of Quebec and Hydro-Québec targets roof insulation. Their conditions can be read on the official sites.
Official sources, consulted on October 8, 2026: