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Updated June 2026

Best Commercial Roofing Contractors in Trois-Rivières

Compare services, check credentials, and contact a roofing company directly.

How we choose

8 results

Compare contractors (8)

Quick Comparison

Rank Company Specialty Experience BBB Website
1 Couvreur M. St-Louis et Fils inc. Residential, Commercial & Industrial 65+ Years Not Listed Visit
2 Couvreurs 04 Residential & Commercial Since 1990 Not Listed Visit
3 Les Toitures Robert Hamel Residential & Commercial Local Not Listed Visit
4 Les Toitures Alain Therrien Inc. Residential, Commercial & Institutional 40 Years Not Listed Visit
5 Les Constructions Grégor Residential, Commercial & Institutional Local Not Listed Visit
6 Toiture Guy Tremblay Residential & Commercial 32+ Years Not Listed Visit
7 Toiture Mauricie SG Residential, Commercial & Institutional Local Not Listed Visit
8 Toitures Guinick Inc. Residential & Commercial Local Not Listed Visit

Detailed Reviews

#2

Couvreurs 04

Residential & Commercial
ExperienceSince 1990 (35+ Years)
BBB StatusNot Listed
SpecialtyResidential & Commercial
Service AreaTrois-Rivières, Shawinigan, Bécancour & Mauricie
Services and company details

Operating in the Mauricie region since 1990, Couvreurs 04 (RBQ 5815-7470-01) installs, repairs and replaces asphalt-shingle and flat elastomeric-membrane roofs for residential and commercial property owners. Additional services include roof snow removal, maintenance, and attic insulation and ventilation. The company works with BP and IKO shingles and SOPREMA flat-roof products, and serves Trois-Rivières, Shawinigan, Bécancour, Nicolet and Louiseville.

Asphalt Shingles Roof Replacement Roof Repair Flat Roofing Roof Snow Removal Attic Insulation & Ventilation
#3

Les Toitures Robert Hamel

Residential & Commercial
ExperienceEstablished Trois-Rivières Roofer
BBB StatusNot Listed
SpecialtyResidential & Commercial
Service AreaBoth shores of Trois-Rivières
Services and company details

An owner-led roofing company on boulevard Gene-H-Kruger in Trois-Rivières specializing in asphalt-shingle installation and roof renovation on both the north and south shores of the city. The company serves residential and commercial property owners, with owner Robert Hamel present on each project, and offers free estimates. It is a long-established name for shingle re-roofing in the Trois-Rivières area.

Asphalt Shingles Roof Replacement Roof Repair Residential Roofing Commercial Roofing
#4

Les Toitures Alain Therrien Inc.

Residential, Commercial & Institutional
Experience40 Years in Business
BBB StatusNot Listed
SpecialtyResidential, Commercial & Institutional
Service AreaTrois-Rivières, Shawinigan, Nicolet & Bécancour
Services and company details

A Trois-Rivières roofer (rue Radnor) with 40 years in business and RBQ licence 5715-6192-01. The company handles asphalt-shingle roofs, flat roofs with elastomeric membrane and ancestral sheet-metal roofing, plus repairs and material sales, for residential, commercial and institutional clients. It is a member of the APCHQ, is CCQ-certified and complies with CNESST standards.

Asphalt Shingles Metal Roofing Flat Roofing Roof Replacement Roof Repair Sheet Metal Roofing
#5

Les Constructions Grégor

Residential, Commercial & Institutional
ExperienceEstablished Local Roofer
BBB StatusNot Listed
SpecialtyResidential, Commercial & Institutional
Service AreaTrois-Rivières, Shawinigan & Mauricie
Services and company details

A Mauricie roofing and construction firm (RBQ 8108-4253) covering both steep-slope asphalt shingles and low-slope flat roofs using elastomeric, TPO and EPDM membranes, plus repairs, inspections and snow removal. It holds BP Canada Platinum certification, SOPREMA's quality-and-safety program certification and Carlisle EPDM accreditation, is CAA-recommended, and serves residential, commercial and institutional buildings including hospitals, schools and libraries across Trois-Rivières and the wider Mauricie.

Flat Roofing TPO Membrane EPDM Membrane Asphalt Shingles Roof Repair Roof Snow Removal
#6

Toiture Guy Tremblay

Residential & Commercial
Experience32+ Years in Business
BBB StatusNot Listed
SpecialtyResidential & Commercial
Service AreaTrois-Rivières, Shawinigan, Bécancour & Nicolet
Services and company details

A Trois-Rivières roofing company (RBQ 2741-6098-72) with more than 32 years of experience installing, renovating and repairing sloped asphalt-shingle roofs for residential and commercial clients. The company is an IKO and BP Canada installer, also offers residential and commercial roof snow removal, and backs its work with a 10-year workmanship guarantee, serving Trois-Rivières, Shawinigan, Bécancour, Champlain, Louiseville and Nicolet.

Asphalt Shingles Roof Installation Roof Replacement Roof Repair Roof Renovation Roof Snow Removal
#7

Toiture Mauricie SG

Residential, Commercial & Institutional
ExperienceEstablished Local Roofer
BBB StatusNot Listed
SpecialtyResidential, Commercial & Institutional
Service AreaTrois-Rivières, Shawinigan & Mauricie
Services and company details

A Trois-Rivières and Shawinigan roofing specialist (RBQ 5631-4909-01) and IKO-certified installer focused on asphalt-shingle roof renovation and re-roofing for residential, commercial and institutional buildings. Services include roof installation and repair, emergency leak repairs, annual maintenance and inspections, and roof snow removal, backed by a 5-year workmanship warranty and a lifetime material warranty on shingles.

Asphalt Shingles Roof Replacement Roof Repair Roof Renovation Roof Inspection Roof Snow Removal
#8

Toitures Guinick Inc.

Residential & Commercial
ExperienceEstablished Local Roofer
BBB StatusNot Listed
SpecialtyResidential & Commercial
Service AreaTrois-Rivières, Shawinigan & Louiseville
Services and company details

A roofing contractor (RBQ 5672-1319-01) serving Trois-Rivières, Shawinigan and Louiseville, with extended coverage into Centre-du-Québec, Portneuf, Lanaudière and Greater Montreal. The company installs and replaces shingles, flat roofs and TPO membranes, handles multi-unit residential roofing, inspections, snow removal and emergency repairs, and uses GAF products. Residential and commercial roofing are both covered, with 24/7 emergency service.

Asphalt Shingles Flat Roofing TPO Membrane Roof Replacement Roof Inspection Roof Snow Removal

Commercial Roofing in Trois-Rivières: Mauricie's Industrial Building Stock and Quebec Winter Standards

Industrial and Institutional Buildings with High Snow-Load Requirements

Trois-Rivières' heritage of heavy-industry construction means a significant portion of the commercial building stock features large-footprint flat roofs designed to carry substantial structural loads. These buildings require roofing contractors who understand the interaction between membrane systems and structural steel or concrete decks, including the thermal bridging that steel decks create and the insulation strategies that mitigate condensation on the underside of metal-deck roofs in Quebec's cold winters.

Heritage Commercial and Institutional Properties in the Old City Core

Trois-Rivières' historic downtown, one of the oldest in Quebec, includes commercial and institutional buildings that may carry architectural or heritage overlay requirements when roofing materials and parapet profiles are modified. Property owners planning commercial re-roofing in the historic core should confirm with the city's patrimoine division whether the proposed scope requires cultural heritage review before permits can be issued.

River-Corridor Properties Exposed to Wind and Freeze Events

Buildings along the St. Lawrence and at the confluence of the Saint-Maurice River experience wind-driven conditions that accelerate membrane edge-lift and flashing separation. Specifying mechanically attached or fully adhered membrane systems with reinforced perimeter details at these exposed locations provides better long-term performance than ballasted or loose-laid alternatives, which are vulnerable to wind scour in the river-corridor environment.

Frequently Asked Questions

How many commercial roofing contractors are in Trois-Rivières?

Our directory lists 8 independently verified commercial roofing contractors serving Trois-Rivières, Quebec, ranked by experience, certifications and reputation. Couvreur M. St-Louis et Fils inc. is ranked #1.

How do I choose a commercial roofer in Trois-Rivières?

Confirm licensing and insurance for Quebec, ask for commercial project references in Trois-Rivières, get multiple written quotes, and check each contractor's BBB standing. Every company listed here has been independently researched.

What roofing systems are most common on commercial buildings in Trois-Rivières?

SBS-modified bitumen membrane systems, often specified using SOPREMA or IKO products available through regional distributors, are the most common choice for commercial flat roofs in the Mauricie region. These systems maintain flexibility at the extreme cold temperatures the area experiences and can be installed as cold-applied or heat-welded systems depending on site conditions. Two-ply assemblies with a vapor barrier, insulation, and reinforced cap sheet are standard specifications for industrial and institutional buildings.

Does a commercial roofer in Trois-Rivières need CCQ certification?

Yes. Roofing work in Quebec falls under CCQ jurisdiction, and contractors must employ CCQ-certified workers holding the appropriate trade card for commercial roofing work. Property owners should ask to see the contractor's CCQ compliance documentation as part of the tendering process. Working with non-CCQ-certified contractors on commercial projects exposes property owners to potential fines and warranty complications under the RBQ plan de garantie framework.

How do Trois-Rivières winters affect commercial roof maintenance planning?

Commercial flat roofs in Trois-Rivières require proactive snow management when accumulations are significant enough to approach structural load limits—a condition that varies by building age and original design load. Drain clearing before and after the winter season is particularly important in the Mauricie region because the freeze-thaw shoulder seasons of March and April often combine snow melt with heavy rainfall, creating peak drainage demand. Annual spring inspections after the thaw catches membrane seam damage before the rainy season arrives in earnest.

Other Roofing Specialties in Trois-Rivières