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Updated June 2026

Best Flat & Low-Slope Roofing Contractors in Saguenay

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

How we choose

5 results

Compare contractors (5)

Quick Comparison

Rank Company Specialty Experience BBB Website
1 A. Plante & Frères Inc. Residential, Commercial & Industrial Since 1956 Not Listed Visit
2 Caouette Construction Residential & Commercial Local Not Listed Visit
3 Toiture Saguenay Inc. Residential & Commercial Local Not Listed Visit
4 Toiture C.V. Dionne Inc. Residential, Commercial & Industrial Since 1995 Not Listed Visit
5 Toiture F.G. Residential, Commercial & Industrial 40+ Years Not Listed Visit

Detailed Reviews

#2

Caouette Construction

Residential & Commercial
ExperienceEstablished Local Roofer
BBB StatusNot Listed
SpecialtyResidential & Commercial
Service AreaChicoutimi, Jonquière & Saguenay-Lac-Saint-Jean
Services and company details

Caouette Construction is a Saguenay couvreur covering asphalt shingle replacement, metal roofing and elastomeric membrane for flat roofs, and it is a member of the APCHQ. The company installs shingles from CertainTeed, IKO and BP Canada and states it is accredited by insurers for shingle-replacement claims. It also offers attic ventilation, ice-dam drainage and roof snow removal across Chicoutimi, Jonquière, La Baie, Alma and the wider Saguenay-Lac-Saint-Jean area.

Roof Replacement Asphalt Shingles Metal Roofing Flat Roofing Roof Snow Removal Attic Ventilation
#3

Toiture Saguenay Inc.

Residential & Commercial
ExperienceEstablished Local Roofer
BBB StatusNot Listed
SpecialtyResidential & Commercial
Service AreaChicoutimi, Jonquière & Greater Saguenay
Services and company details

Toiture Saguenay Inc. is a CertainTeed-certified installer offering the SureStart Plus warranty, and is listed as a CAA-Quebec recommended business and an APCHQ member. Its work spans asphalt, cedar and steel shingles, white energy-efficient elastomeric membranes, and flat or low-slope commercial roofs, plus repair, renovation and heritage-home restoration. The company serves Chicoutimi, Jonquière, La Baie and surrounding towns including Alma, Saint-Ambroise, Saint-Fulgence and Saint-Honoré.

Roof Replacement Asphalt Shingles Steel Shingles Flat Roofing Elastomeric Membrane Roof Inspection
#4

Toiture C.V. Dionne Inc.

Residential, Commercial & Industrial
ExperienceSince 1995 (29+ Years)
BBB StatusNot Listed
SpecialtyResidential, Commercial & Industrial
Service AreaSaguenay & Eastern Quebec
Services and company details

Operating since 1995, Toiture C.V. Dionne specializes in flat and low-slope roofing, working with EPDM, PVC/TPO, liquid-applied and elastomeric membranes as well as white reflective roof systems. The company offers maintenance, repair, renovation and both standard and drone-based thermographic roof inspections. It serves residential, commercial and industrial buildings across Saguenay, Chicoutimi, Jonquière and the broader eastern-Quebec region.

Flat Roofing Membrane Roofing Roof Repair Roof Inspection White Roof Systems Maintenance
#5

Toiture F.G.

Residential, Commercial & Industrial
Experience40+ Years Experience
BBB StatusNot Listed
SpecialtyResidential, Commercial & Industrial
Service AreaSaguenay-Lac-Saint-Jean
Services and company details

Toiture F.G. brings more than 40 years of roofing experience and holds SOPREMA's PAQ+S installer accreditation, alongside membership in the Association de la construction du Québec (ACQ). The firm handles flat and pitched roofs in elastomeric, TPO/PVC and EPDM membranes as well as asphalt shingles, plus repair, replacement, maintenance and roof snow removal. Based in Saint-David-de-Falardeau, it serves residential, commercial, industrial and institutional clients across Saguenay-Lac-Saint-Jean including Chicoutimi and Jonquière.

Roof Replacement Roof Repair Flat Roofing Membrane Roofing Asphalt Shingles Roof Snow Removal

Elastomeric Flat Roofing for Saguenay's Demanding Boreal Climate

When Post-Winter Inspection Reveals Seam Failure or Membrane Cracking

Saguenay's spring inspection window — typically April into early May as snow clears from rooftops — is the critical moment for assessing flat-roof condition after the winter stress cycle. Seam separations, membrane cracking at parapet angles, and drain surround deterioration are the most common failure patterns after a severe Saguenay winter and should be addressed before summer rainfall begins.

For Industrial or Institutional Buildings with Multiple Legacy Membrane Layers

Many older industrial buildings in Jonquière and Chicoutimi carry rooftop assemblies that have accumulated multiple generations of recover layers. When the total assembly exceeds a point where drainage cannot be restored by tapered insulation design, or when the combined weight approaches structural limits, a full tear-off and rebuild is the appropriate path regardless of whether active leaking has begun.

Before Scheduling Roof Snow Removal to Identify Load Distribution Issues

Saguenay property owners who arrange professional snow removal on flat roofs should have an inspection performed concurrently to identify zones where membrane distress or drain obstruction is creating hidden ponding under the snowpack. Drain blockages that remain frozen and unnoticed through the winter often reveal themselves as significant interior leaks during the rapid spring melt.

Frequently Asked Questions

How many flat & low-slope roofing contractors are in Saguenay?

Our directory lists 5 independently verified flat & low-slope roofing contractors serving Saguenay, Quebec, ranked by experience, certifications and reputation. A. Plante & Frères Inc. is ranked #1.

How do I choose a flat & low-slope roofer in Saguenay?

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

Why is elastomeric membrane so dominant for Saguenay flat roofs compared to TPO or EPDM?

SBS-modified bitumen elastomeric membrane was developed with cold-climate performance as a design priority, and decades of use in Quebec's harshest markets have built an extensive base of local contractor experience and product availability around it. EPDM is used on some commercial applications, but its performance in Saguenay's extreme cold at seams and adhesive bonds is more variable. TPO usage is growing in the commercial sector but the local market and applicator training base still centres on elastomeric systems.

What RBQ licence requirements apply to flat-roof work in Saguenay?

All flat-roof installation and replacement work of meaningful scope in Saguenay requires the contractor to hold a valid RBQ licence in the appropriate roofing sub-category. Homeowners and commercial property owners should verify the RBQ licence number on the Régie du bâtiment du Québec public registry before contracting. AMCQ membership is an additional positive signal for residential and commercial flat-roof work in the Saguenay market.

How does the Saguenay climate affect the timing of flat-roof installation and maintenance?

The window for optimal membrane installation in Saguenay is shorter than in southern Quebec — roughly late May through early October for most adhesive and torch-applied systems, with cold-weather installation techniques extending the window slightly into shoulder seasons. Major re-roofing projects are best scheduled for summer months, while emergency repairs may need to use cold-weather-specific adhesives and techniques to achieve adequate bond strength.