Roof replacement cost in Quebec
Every figure comes from a named source, with its year. When sources disagree, we show them all. Real prices depend on your house: these are benchmarks to spot an unusual quote, not quotes.
The minimum to expect
| Localized leak repair | starts at about $350 to $800 | Toiture Qualité Pro (RBQ 5770-4033-01) · price list published by a company |
Ranges
| Asphalt shingles, installed | $6 to $12 per sq ft /sq ft | Soumission Rénovation (plateforme de soumissions) · quote platform — has an interest in generating requests |
| Elastomeric membrane or TPO (flat roof) | $11 to $21 per sq ft /sq ft | Soumission Rénovation (plateforme de soumissions) · quote platform — has an interest in generating requests |
| Roof decking replacement | $75 to $120 per sheet | Soumission Rénovation (plateforme de soumissions) · quote platform — has an interest in generating requests |
| Flashing replacement | $500 to $1,200 | Toiture Qualité Pro (RBQ 5770-4033-01) · price list published by a company |
| Partial redo (damaged section) | $1,500 to $5,000 | Toiture Qualité Pro (RBQ 5770-4033-01) · price list published by a company |
| RénoPlex subsidy (Bloc 2 only): redo a sloped roof | $30 per m² /m² | Ville de Montréal · official source |
| RénoPlex subsidy (Bloc 2 only): redo the roof with a white membrane | $70 per m² /m² | Ville de Montréal · official source |
What moves the price
- RénoPlex funds roofs only in Bloc 2 (2- to 5-unit buildings with low property value); a single-family house is not eligible. — Ville de Montréal
- The roofer must hold RBQ licence 7.0 (or a general contractor licence) and answers for the work for 5 years. — CAA-Québec
- Inference: rotten decking only shows once the roof is open; have the price per sheet written into the contract.
Who does this work near you
Or choose: South Shore (109) · Montreal (94) · Laval (46) · Terrebonne (50) · Mirabel (48) · Saint-Jean-sur-Richelieu (41) · all cities →
Sources
- Réparation de toiture Montréal (Toiture Qualité Pro (RBQ 5770-4033-01)), aucune date sur la page (consulté le 2026-09-22) — price list published by a company — toiturequalitepro.ca/fr/services/reparation-toiture/
- Prix toiture Québec 2026 : combien coûte refaire sa toiture (Soumission Rénovation (plateforme de soumissions)), 2026-04-13 — quote platform — has an interest in generating requests — soumissionrenovation.ca/fr/blogue/prix-toiture-quebec-2026-combien-co…
- RénoPlex : déterminer les montants accordés par type de travaux (Ville de Montréal), 2026-08-18 (mis à jour) — official source — montreal.ca/articles/renoplex-determiner-les-montants-accordes-par-ty…
- RénoPlex : subventions à la rénovation des immeubles de 1 à 5 logements (Ville de Montréal), 2026-06-19 (mis à jour) — official source — montreal.ca/programmes/renoplex-subventions-la-renovation-des-immeubl…
- Choisir mon couvreur (CAA-Québec), 2017-01-27 — trade association — www.caaquebec.com/fr/conseils/renover/guides/refaire-ma-toiture-de-ba…