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Commercial Industrial Flat Roofing

Commercial Industrial Flat RoofingCommercial Industrial Flat Roofing
FREE QUOTATION

GTA'S TOP LEADING FLAT ROOFING SPECIALISTS

Bringing Quality To New Heights®

At Gentech Roofing, our skilled team of experienced professionals is dedicated to providing high-quality commercial roofing and industrial roofing services tailored to your needs. We offer a wide-range of services, including roof repair, roof replacement, preventative maintenance, emergency leak repair, free inspections, roof report assessments, mechanical curb installation and new construction.


Have a Question? / Request a Quote? 

📞Call (905) 270-6779 📧E-mail: info@gentechroofing.com

Serving the GREATER TORONTO AREA & Surrounding LocATIONS

OUR SERVICES


COMMERCIAL & INDUSTRIAL

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FREE INSPECTIONS

A leaking roof can have serious consequences if left unattended. Our team of flat roofing specialists can inspect the roof and provide you with a detailed estimate and maintenance plan at no cost.

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Roof ReportS

We provide detailed roof assessment report for assessing roof conditions, identifying potential issues, and planning repairs or replacements. insurance and restoration companies can count on our specialists for fast, reliable and quality service. Please contact us for pricing.

A rooftop under installation with Polygass waterproofing material.

ROOF REPAIR & REPLACEMENT

Roof repair and roof replacement involve identifying and fixing issues such as membrane wear, leaks, ponding water and damaged flashing. When repairs are no longer sufficient, a complete roof replacement ensures your building roof stays secure, water-resistant and fully functional for years to come.

Construction workers repairing a flat rooftop on an industrial building.

PREVENTATIVE MAINTENANCE

Without regular roof maintenance, problems can intensify from repair to costly replacement needs. Gentech's Preventative Maintenance Plan can extend the life of your existing roof. Contact us for more info.

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EMERGENCY LEAK REPAIR

When you have water pouring in on your production line or streaming in over your inventory, leave it to the professionals at Gentech Roofing to stop the leak, so you can get back to what’s important. 

Three construction workers inspecting a building site with scaffolding and cranes.

NEW CONSTRUCTION

Starting a new building project or adding a roof addition requires careful planning and expert execution. When it comes to flat roofing for new construction, Gentech ensures long-term performance and durability.

THERMAL IR ROOF SCAN

Infrared real time imaging is a proven method for identifying and defining moisture problems in roofs. Our certified team can conduct an Imaging Scan and provide you a comprehensive Thermal IR report. Please contact us for more information and pricing.

DRONE INSPECTION

Our Certified Drone Technology Team can easily determine the condition of your roof and provide you with a detailed report including 4K quality photos in aerial view. Contact us for a quote.

Worker applying black waterproofing sealant to a flat rooftop under a sunny sky.

MODIFIED BITUMEN HYBRID BUR

A Modified Bitumen Hybrid BUR roofing system combines the redundancy of traditional Built-Up Roofing (BUR) with the advanced technology of modified bitumen roofing membranes. With proper installation, care, and maintenance, this system has an average life of 20 years or more. 

Workers in safety gear install roofing material on a rooftop under city buildings.

4-PLY BUILT-UP (BUR)

4-Ply Built-up roofing systems (BUR) consist of multiple layers of roofing felt, secured with layers of hot asphalt, and topped with a layer of gravel. This is one of the oldest, durable and most reliable systems installed in Canada since the early 1900's. 

Worker installing a waterproof membrane on a roof using heat and a roller.

2-PLY MODIFIED BITUMEN

 Similar in principal to the B.U.R these roofs see a life span of up to 30 years with proper scheduled maintenance. A 2-ply roofing system is durable and can cope with our harsh winter climate, foot traffic and maintenance servicing of HVAC systems.

Aerial view of a large warehouse with trucks parked at loading docks. Warehouse flat roof repair

1-PLY SINGLE PLY ROOFING

TPO, PVC, and EDPM are the three most common types of single-ply membrane systems. This is by far the most common synthetic rubber roofing option for larger scale projects. Highly dependable, durable and economically beneficial to any building owner and manager.

Experience exceptional service at Gentech, your trusted Top Leading FLAT ROOFING CONTRACTOR!

ABOUT US

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Our Approach

We believe in taking a personalized approach to every project we undertake. We work closely with our clients to understand their needs and preferences, and we tailor our services accordingly. At Gentech Roofing, we don’t just meet expectations; we exceed them. 

FAMILY LEGACY

We are a Proudly Canadian, Family Owned & Operated company. Watch how it all started and see how far we've come. Check out our introduction video on YouTube to learn more about us 📷⭐📽

Workers using rollers to install roofing material on a flat surface.

Our Experience

As a trusted leader in the Commercial & Industrial roofing industry, we have built a reputation for excellence. With over 35 years of experience through our family legacy, we pride ourselves on our expertise and commitment to using the best products.

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Health & Safety

The safety of our customers and our employees is of the highest importance. We are fully compliant with WSIB and fully insured. All Gentech workers have mandated Ministry training, including Working at Heights, Fall Protection, PPE, Propane Safety, First Aid, and CPR.

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Edge-To-Edge Warranty

Quality is at the heart of what we do at Gentech. Our mission is to deliver high quality craftsmanship and client satisfaction without compromise. For more warranty information, please contact us.

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Certifications & Training

 IAAP applicator of IKO | Registered Polyglass Contractor | GAF Certified Roofing Contractor | Ministry Health & Safety Training Certifications | WSIB Compliant | Fully Licensed & Insured

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Awards & Recognition

Gentech Roofing has received awards and recognition in The Readers' Choice Awards for "Best Roofing Company" including the Brampton Guardian, Mississauga News and Toronto Star.

ROOF LEAK? QUESTION? CALL US 📞

905-270-6799

©2025 Gentech Roofing | All Rights Reserved.

1590 Dundas Street East, Suite B6

Mississauga, Ontario

L4X 2Z2 Canada

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