Flat roof roofer in Montreal, PC Qualité Toits
Very popular on urban buildings in Montreal, TPO membrane is suitable for both residential and commercial properties. Flat roofs require skilled workmanship and precise expertise to ensure a fully waterproof system. A flat roof must effectively manage rainwater drainage and withstand Québec’s climate variations.
As a flat roof roofer in Montreal, PC Qualité Toits carries out all work related to your flat roofing system. We handle TPO membrane installation and replacement projects and also provide elastomeric and TPO membrane repair services. Our roofing teams follow the highest standards and the most rigorous techniques to ensure unmatched durability.
Flat roofing contractor in Montreal
For more than 20 years, we have managed flat roofing projects for property owners, building managers, and commercial clients. Every flat roof project begins with a complete analysis of the roof deck, insulation, drainage system, and transitions.
Our company is committed to a professional and rigorous approach. Our specialization in flat roofing, the expertise of our TPO manufacturer-certified installers, and our compliance with industry standards guide every intervention. Each roof undergoes a detailed technical assessment, followed by structured planning and continuous supervision to maintain the highest level of quality.
We hold an RBQ licence and are accredited by the APCHQ, ACQ, and OPC. Our company is also proudly recommended by CAA-Québec.


Services offered by your flat roof roofing contractor
We handle both flat roof maintenance and large-scale replacement projects. All our work is performed with precision and dedication to ensure the performance of your roofing system.
TPO flat roof installation and replacement in Montreal
Our qualified roofers carry out the complete installation of TPO flat roofing systems for new construction or flat roof renovation projects. TPO membrane is a highly flexible and stable roofing material that is resistant to UV rays. Its hot-air welded seams provide long-lasting waterproofing. We use only high-quality and recognized products such as Elevate, IKO, Lexcan, and Carlisle, installed strictly according to manufacturer specifications.
Elastomeric membrane repair
Your flat roof roofer in Montreal also provides targeted repairs for elastomeric membrane roofs. This specialized service may be required in cases such as localized leaks, cracks or blisters in the membrane, damaged flashing, or weakened seams.
Before performing the repair, our team conducts a detailed inspection to identify the source of the issue. We then correct the damaged area without compromising the existing roofing system. PC Qualité Toits does not perform full elastomeric membrane installations. However, we can repair the membrane when the roofing system remains salvageable.
TPO flat roof repair and maintenance in Montreal
In addition to installation, our roofers perform TPO membrane repairs when sections become damaged or worn. Periodic maintenance is the best way to extend the lifespan of a flat roof. We offer professional services including preventive inspections, drain cleaning, verification of welded seams, and localized repairs for TPO flat roofs.
Skylights and sheet metal work for flat roofs
We install Verplex skylights compatible with flat roofing systems. Installation is carried out by our experienced team with particular attention to waterproofing details to ensure a compliant and visually appealing integration. We also perform custom sheet metal work, including metal flashing, roof edges, and finishing components. These elements play a critical role in protecting your flat roof.
Flat roof snow removal in Montreal
Heavy snow accumulation and ice barriers can place significant pressure on a flat roof. Proper snow removal helps preserve the condition of the membrane and maintain effective drainage. Our roofing teams work safely and methodically to remove excess snow without damaging the roofing material.
Flat roof services available across Montreal
Our team travels quickly throughout the metropolitan area to handle flat roof installation and repair projects. We serve all boroughs of Montreal, including:
Areas Served
- Le Sud-Ouest
- Verdun
- LaSalle
- Lachine
- Ville-Marie
- Côte-des-Neiges–Notre-Dame-de-Grâce
- Outremont
- Plateau-Mont-Royal
- Rosemont–La Petite-Patrie
- Mercier–Hochelaga-Maisonneuve
- Villeray–Saint-Michel–Parc-Extension
- Ahuntsic-Cartierville
- Montreal-Nord
- Rivière-des-Prairies–Pointe-aux-Trembles
- Saint-Laurent
- Anjou
- Saint-Léonard
- Pierrefonds-Roxboro
- L’Île-Bizard–Sainte-Geneviève
Browse some of our flat roof projects
Here are a few flat roofing projects completed in Montreal and the surrounding area. These examples illustrate the types of interventions we perform on residential and commercial buildings.

Competitive pricing backed by reliable warranties
At PC Qualité Toits, we apply transparent pricing and complete our work according to recognized technical standards. Our projects are covered by a 10-year warranty on labour and materials. Thanks to our agreements with product manufacturers, we can also offer manufacturer warranties ranging from 5 to 30 years, depending on the system chosen. These warranties apply following an inspection confirming compliance of the work.
Free estimate for your flat roof in Montreal
Planning to install a TPO flat roof or repair an elastomeric membrane? Our team can analyze your roofing system and provide a detailed estimate. For a durable and high-performance flat roofing system, trust PC Qualité Toits in Montreal.
FAQ – Flat roof questions in Montreal
Have questions about your flat roof or our services? Here are answers to the most common questions regarding flat roofing in Montreal.
How much does a flat roof cost in Montreal?
The cost of a flat roof depends on the roof size, the condition of the roof deck, building accessibility, and the membrane selected. A prior inspection is required to provide an accurate estimate.
What is the lifespan of a TPO membrane?
A properly installed and maintained TPO membrane can last 20 to 30 years. Regular maintenance and preventive inspections help extend the system’s lifespan.
When should a flat roof be repaired or replaced?
A localized repair may be sufficient in cases of leaks or isolated damage. However, if the membrane shows significant wear or if insulation is compromised, a full replacement may be recommended.
How often should a flat roof be inspected?
A flat roof should be inspected at least once per year, ideally in spring or fall. Preventive inspections help identify critical areas early and avoid more costly damage.
Is TPO membrane suitable for our climate?
Yes. TPO membrane offers excellent resistance to UV rays, temperature variations, and freeze-thaw cycles. When installed according to standards, it is a durable roofing solution for Montreal buildings.