Expert Commercial Roofing and Waterproofing Solutions in Toronto
Nusite Group provides commercial roofing systems for institutional, industrial, and complex commercial buildings across the GTA and Southern Ontario. Established in 1990, we support general contractors, project managers, property managers, and facility teams with roofing solutions designed for long-term durability, system compatibility, and coordinated project execution.
Our work includes new roofing installations, existing roof rehabilitation, specialty waterproofing-related roofing assemblies, and traffic-bearing roofing applications. Whether the project involves a new commercial development, a building rehabilitation scope, or a specialized roofing replacement, our team delivers system-driven solutions aligned with performance, sequencing, and lifecycle objectives.
Commercial Roofing for Complex Building Conditions
Commercial roofing requires more than replacing membrane assemblies. It requires a clear understanding of how roofing systems interact with waterproofing, drainage, insulation, traffic exposure, structural conditions, and existing building envelope components.
Nusite Group provides commercial roofing services for projects where long-term watertight performance, constructability, and durability are critical. We support both new construction and existing building rehabilitation, helping project teams select and execute roofing systems that meet technical requirements, project budgets, and specification standards.
We are committed to delivering projects on time and within budget, with minimal disruption to your operations. Partner with us for your next roofing project in Toronto and experience excellence in every phase of the process.
Our In-Office Services
At Nusite Group, we provide expert consulting services throughout the design process, helping with material selection and comprehensive cost planning. With over 30 years of hands-on experience, we ensure your budgets are not only realistic but also carefully planned well in advance, allowing for smooth project execution and long-term success.
On-Site Services
Podium Deck and Ramp Waterproofing
Parking Garage Roofing
Metal Roof Repairs and Re-coating
Existing Roof Re-coating (repairs without replacement)
Inverted Roofing Systems
Cold Applied Roofing Systems
HDPE, TPO and EPDM Repairs
Encapsulating Hazardous Materials via Re-roofing
Green Roof Installation
Hot Rubber Installations
Metal Flashing & Roof Accessories
2 Ply SBS
Pre-Construction, Design Support & Budget Planning
Nusite Group provides in-office consulting support during planning and design phases, helping project teams assess roofing system options, review constructability, and develop realistic cost plans before installation begins.
This early involvement supports better material selection, improved sequencing, and stronger alignment between roofing, waterproofing, and structural conditions. It also helps reduce change risk and supports smoother execution in both new construction and rehabilitation environments.
Where Our Roofing Systems Are Used
Our commercial roofing services are applied across a wide range of building and assembly types, including:
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industrial and warehouse facilities
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institutional buildings
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commercial low-rise and mid-rise properties
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parking structures and parking decks
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podium decks and ramps
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retrofit and rehabilitation projects
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roofing and waterproofing transition assemblies
These scopes often require coordination with consultants, engineers, general contractors, and ownership groups to ensure compatibility with the broader building envelope and project schedule.
Parking Garage Roofing
Nusite Group specializes in parking deck roofing and waterproofing systems designed to protect your structure from the elements. Our team provides durable and long-lasting solutions for podium deck and ramp waterproofing, ensuring that your parking garage remains safe from water damage, leaks, and deterioration. With our expertise, we apply advanced techniques to safeguard both new and existing parking structures, maintaining their integrity for years to come.
We understand the unique challenges that come with parking garages, including heavy traffic, exposure to the elements, and constant wear and tear. Our waterproofing systems are specifically designed to handle these challenges, providing a reliable barrier that prevents water infiltration and structural damage. Whether you’re looking to restore an existing garage or ensure your new construction is watertight, Nusite Group delivers tailored solutions that meet your needs.
Commercial Roofing Installation & Repair
At Nusite Group, we provide expert commercial roof repair and installation services, ensuring your building is protected with the most advanced roofing materials and systems available. Our team specializes in installing and maintaining a wide range of commercial roofing systems, including HDPE, TPO, EPDM, hot rubber, and metal roofs. Whether you’re dealing with a commercial or industrial flat roof, we offer tailored solutions that guarantee long-lasting protection.
From initial installation to ongoing waterproofing and repair, we cover every aspect of your roofing needs. Our experienced professionals are skilled in identifying potential issues and delivering prompt commercial roof repair services to prevent leaks and further damage. With over 30 years in the industry, Nusite Group ensures that your commercial roofing system is installed with precision and repaired to the highest standards, ensuring durability and cost-efficiency.
Green Roofing Systems
We offer innovative green roof installation services that provide both environmental benefits and long-term savings for commercial buildings. As a leader in green roofing systems in Toronto, we specialize in eco-friendly solutions that enhance the energy efficiency of your property while contributing to sustainable urban development. Our green roofing systems not only reduce heat absorption and improve insulation but also help manage stormwater runoff and improve air quality.
By choosing Nusite Group, you’re partnering with a team that provides commercial roofing services designed to meet the specific needs of your building. Our green roof installations are tailored to your project, whether it’s a retrofit or new construction. With our commitment to sustainability and over 30 years of industry experience, we ensure that your commercial building benefits from a cutting-edge, eco-friendly roofing solution that stands the test of time.
FAQ
What commercial roofing systems does Nusite Group install and repair?
Nusite Group works with a range of commercial roofing systems, including inverted roofing systems, cold applied roofing systems, green roofs, hot rubber systems, metal roof repairs and re-coating, and repair work involving HDPE, TPO, and EPDM membrane assemblies.
Do you work on both new construction and existing commercial buildings?
Yes. Nusite Group supports both new construction roofing scopes and existing building rehabilitation projects, including repairs, re-coating, replacement planning, and roofing systems integrated with waterproofing assemblies.
What types of commercial properties do you provide roofing services for?
We provide roofing services for institutional, industrial, and complex commercial properties, including warehouses, parking structures, podium decks, ramps, and other buildings requiring durable roofing and waterproofing performance.
Can Nusite Group help with budgeting and roofing system selection?
Yes. We provide design-phase and pre-construction support, including material selection guidance, budgeting input, and constructability review to help project teams make informed decisions early in the process.
Do you provide parking garage roofing and podium deck waterproofing?
Yes. Parking garage roofing, podium deck waterproofing, and ramp waterproofing are part of our commercial roofing and waterproofing capabilities for traffic-bearing and exposed structural assemblies.
Do you offer repair and re-coating for existing commercial roofs?
Yes. We provide repair and re-coating solutions for existing commercial roof systems, including metal roofing and membrane assemblies where restoration is a practical alternative to full replacement.
What areas do you serve?
Nusite Group serves the Greater Toronto Area and Southern Ontario for large-scale commercial and institutional roofing and waterproofing projects.
How is commercial roofing different from residential roofing?
Commercial roofing involves larger assemblies, more complex detailing, broader coordination requirements, and systems designed to perform within institutional, industrial, and commercial construction environments.
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