Vetted, currently-operating roofing contractors serving Laval and the Greater Montreal region, ranked by longevity, RBQ licensing, manufacturer certifications and local reputation.
Founded in 1924, René Perron Couvreurs is the longest-established roofer on this list and a recognized name across Montreal, Laval and the North and South Shores. The company holds RBQ licence 1117-5833-85 and is a certified installer for IKO, Soprema, Firestone and Mule-Hide. It has been named Consumer Choice on the Island of Montreal for 17 consecutive years and handles flat roofs, sloped roofs, slate, steel, insulation and emergency work.
Based on rue Michelin in Laval, Les Couvreurs Duro-Toit has more than 20 years of experience in flat and sloped roofing for residential and commercial properties. Its crews are RBQ-certified, and the company lists manufacturer certifications spanning GAF, IKO, BP, CertainTeed, Owens Corning, Soprema, Carlisle and Firestone. It was elected Consumer Choice each year from 2020 through 2025 and provides infiltration repair, ventilation, insulation, snow removal and emergency service.
Roof ReplacementRoof RepairFlat RoofingAsphalt ShinglesRoof MaintenanceVentilationSnow RemovalEmergency Service
Founded and based in Laval, Couvreur GP Inc. brings more than 25 years of experience across residential, commercial and industrial roofing. It holds RBQ licence 8299-4377-33, is a certified BP (Weather-Tite) and IKO (Roofpro Privilège) installer, and is a member in good standing of the APCHQ, ACQ and CCQ. The company works in asphalt shingles, elastomeric membrane, asphalt and gravel, TPO and EPDM, with 24/7 emergency service.
Roof ReplacementRoof RepairAsphalt ShinglesFlat RoofingTPO RoofingEPDM RoofingEmergency Service
Operating since 2005 from rue Marcel-Benoît in Laval, Couvreur Couv-Toit specializes in asphalt shingles, TPO and elastomeric membrane roofs. The company holds a valid RBQ licence, is a member of the APCHQ and is recommended by CAA-Québec. It is certified by IKO, BP, Firestone and Soprema and serves Laval neighbourhoods including Chomedey, Pont-Viau, Laval-des-Rapides, Fabreville and Sainte-Rose, with 24/7 emergency service.
Roof ReplacementRoof RepairAsphalt ShinglesTPO RoofingFlat RoofingSnow RemovalEmergency Service
Les Couvreurs Couvre-Toit Laval Inc. is a Laval-based roofer with more than 35 years of experience and a full-time team focused on asphalt shingle roofing. The company holds government certifications and belongs to industry associations, and offers installation, repair, maintenance, inspection and emergency repair for weather-damaged roofs across Laval and the surrounding region.
Roof ReplacementRoof RepairAsphalt ShinglesRoof InspectionRoof MaintenanceEmergency Service
Based on avenue Valleyfield in Laval, Couvreur Denis Courville Inc. holds RBQ licence 8000-4237-46 and is listed as a CAA-Québec approved residential supplier. The company installs, replaces and repairs roofs designed for Quebec winters, working in elastomeric and TPO membrane, asphalt and gravel and asphalt shingles. It provides free estimates and written guarantees for homeowners in Laval, Montreal and on the North Shore.
Operating since 1991 from Mirabel, Toitures Président brings more than 30 years of experience to residential, commercial and industrial roofing across Greater Montreal, with service extending from Laval to Saint-Jérôme. The company is RBQ-certified and recognized as a GAF Master Elite contractor. Its work includes roof replacement and repair, preventive inspection, insulation, ventilation and 24/7 emergency service.
Roof ReplacementRoof RepairAsphalt ShinglesFlat RoofingRoof InspectionVentilationEmergency Service
Clinique de la Toiture FCA holds RBQ licence 8006-5543-06 and specializes in flat roofing for residential, commercial, industrial and multi-unit buildings serving Laval, Montreal, Terrebonne and Blainville. Its expertise covers TPO, EPDM, elastomeric membrane, asphalt and gravel, green roofs, white roofs and rooftop terraces. The company emphasizes roofing built for Quebec's freeze-thaw cycles, snow loads, freezing rain and high winds.
Headquartered on Montée Masson in Laval, Toitures LV holds a general contractor construction licence and offers one of the broadest service ranges on this list. Beyond roof replacement and repair, it handles inspections, skylights, gutters, soffits, fascia, insulation, heating-cable installation, snow removal and de-icing for residential and commercial buildings. The company provides 24/7 emergency service year-round across Laval, Montreal and the North and South Shores.
Roof ReplacementRoof RepairFlat RoofingEavestroughSkylightsInsulationSnow RemovalEmergency Service
Founded in 2006, Demos Roofing (Couvreurs Demos) specializes in flat roofs with tar and gravel and elastomeric membrane, alongside asphalt shingle and metal roofing. The company states it is insured up to $1,000,000 and serves Laval, Montreal, the South Shore, North Shore and West Island. It offers roof repair, installation, inspection, snow removal and emergency work seven days a week.
Flat RoofingRoof RepairAsphalt ShinglesMetal RoofingRoof InspectionSnow RemovalEmergency Service
In Quebec, any roofing contractor must hold a valid licence from the Régie du bâtiment du Québec (RBQ) to perform construction work legally. Before hiring a Laval roofer, ask for the RBQ licence number and confirm it is active and in the correct subcategory on the RBQ public register. Working with an unlicensed contractor can void manufacturer warranties and leave you without recourse if something goes wrong.
Confirm CNESST coverage and liability insurance
Quebec roofers and their workers must be registered with the CNESST (Commission des normes, de l'équité, de la santé et de la sécurité du travail) for workplace safety coverage. Ask for proof of CNESST registration and a certificate of liability insurance. If a worker is injured on your Laval property or your home is damaged, this coverage protects you from being held financially responsible.
Check the municipal permit requirements
The City of Laval requires a permit (certificat d'autorisation) for many roofing projects, particularly replacements or any work that alters the structure. A reputable Laval contractor will know whether your job needs a permit and will help you obtain it. Confirm in advance who is responsible for pulling the permit so the work stays compliant with local by-laws.
Prioritize manufacturer certifications
Look for contractors certified by the manufacturers whose products they install, such as GAF, IKO, BP, CertainTeed, Owens Corning or Soprema. In Quebec's climate, certified installers can register enhanced manufacturer warranties that protect against material defects, and the certification confirms the crew is trained in proper installation for our snow and freeze-thaw conditions.
Ask about winter and freeze-thaw experience
Laval winters bring heavy snow loads, ice damming and repeated freeze-thaw cycles that punish a roof. Choose a contractor experienced with the systems that perform here: ice-and-water shield at eaves and valleys, proper attic ventilation, and elastomeric or TPO membranes on flat roofs. Ask specifically how they detail your roof to prevent ice dams and water infiltration.
Get a written, detailed estimate and warranty
Request a written estimate that itemizes materials, labour, permit handling, cleanup and the workmanship warranty term. In Quebec, reputable roofers provide a written guarantee separate from the manufacturer's material warranty. Compare at least two or three Laval quotes, but be cautious of bids far below the others, which can signal cut corners on underlayment, ventilation or licensing.
Frequently Asked Questions
For a typical Laval home, an asphalt shingle roof replacement generally runs from about $8,000 to $18,000 CAD depending on roof size, pitch and complexity, while a flat roof with elastomeric or TPO membrane often falls between roughly $12,000 and $25,000 CAD. Steep, multi-level or premium-material roofs cost more. Always get itemized written quotes from two or three RBQ-licensed contractors, since prices vary with access, tear-off layers and ventilation upgrades.
Asphalt shingles remain the most common choice for sloped Laval roofs because they balance cost and durability against snow and freeze-thaw cycles. For low-slope or flat roofs, elastomeric (modified bitumen) and TPO membranes perform well in our cold winters and hot summers. Metal roofing is increasingly popular for shedding snow and lasting decades. Whatever the material, proper ice-and-water shield and attic ventilation matter more than any single product for preventing ice dams.
The contractor must hold a valid RBQ (Régie du bâtiment du Québec) licence to perform the work legally and be registered with the CNESST for worker safety coverage. As the homeowner, you typically need a municipal permit from the City of Laval for a roof replacement or structural work. Your contractor should confirm whether a permit is required and help you obtain it before the job begins.
In Laval's climate, an asphalt shingle roof typically lasts about 20 to 30 years, though harsh freeze-thaw cycles and ice damming can shorten that without good ventilation and maintenance. Elastomeric and TPO flat-roof membranes generally last 20 to 30 years, and metal roofs can exceed 40 to 50 years. Annual inspections and prompt repair of small leaks meaningfully extend a roof's life in our winters.
Verify a valid RBQ licence, CNESST registration and liability insurance, then confirm the contractor is established locally and experienced with Quebec winters. Favour roofers with manufacturer certifications (such as GAF, IKO, BP or Soprema) so you can register enhanced warranties, and ask for a written workmanship guarantee. Get itemized quotes and check that the contractor handles the Laval municipal permit when one is required.
Laval's heavy winter snowfall and repeated freeze-thaw cycles create ice dams, where melted snow refreezes at the eaves and forces water back under the shingles, causing leaks and rot. Snow load also stresses the structure, especially on flat roofs. Mitigation includes ice-and-water shield membrane at eaves and valleys, balanced attic insulation and ventilation, and professional roof snow removal after major storms. A local roofer can detail your roof specifically to reduce these risks.
Roofing in Laval
Laval sits just north of Montreal on Île Jésus, and its roofs face one of the more demanding climates in North America. Winters are long and cold, with heavy snowfall, accumulating snow loads and frequent freezing-rain events, while spring and fall bring repeated freeze-thaw cycles that work moisture into any weak seam or fastener. The biggest seasonal threat is ice damming: snow melts over a warm attic, runs to the colder eaves and refreezes, forcing water back up under the roof covering. Combined with summer heat and UV exposure, these swings make ventilation, ice-and-water shield and quality installation far more important here than in milder regions.
The dominant roofing systems in Laval reflect the housing stock. Detached and semi-detached homes with sloped roofs are mostly covered in asphalt shingles, prized for their cost-to-durability balance, with metal roofing growing in popularity for its ability to shed snow and last for decades. Laval also has many flat and low-slope roofs on duplexes, plexes, commercial buildings and modern homes; these are typically finished with elastomeric (modified bitumen) membranes, TPO or EPDM, or traditional tar-and-gravel assemblies. Most established local contractors work across both sloped and flat systems because the mix of building types demands it.
Roofing in Quebec is regulated more strictly than in much of Canada. Any contractor performing construction work, including roofing, must hold a valid licence from the Régie du bâtiment du Québec (RBQ) in the appropriate subcategory, and crews must be covered through the CNESST for workplace health and safety. This differs from provinces such as Ontario, which has no provincial roofing trade licence but requires WSIB coverage and municipal permits, or British Columbia, where a municipal business licence governs the trade. In Laval specifically, homeowners generally need a municipal permit (certificat d'autorisation) for a roof replacement or any structural change, which a reputable contractor will help arrange.
Given these climate and regulatory realities, choosing an experienced local contractor matters more in Laval than almost anywhere. A roofer who has worked through many Laval winters understands how to detail eaves and valleys against ice dams, how to ventilate attics to prevent condensation, and which membranes hold up to freeze-thaw and snow load. Local contractors also know the City of Laval permit process and carry the RBQ licensing, CNESST coverage and manufacturer certifications that protect your warranty and your investment. The ten companies profiled below were selected and ranked on longevity, manufacturer certifications, licensing, service breadth and local reputation.
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