Toronto & GTA's Most Trusted Commercial Roofing Experts
Protecting businesses across Mississauga, Toronto, and the Greater Toronto Area for over 38 years. Flat roofing, repairs, maintenance & sheet metal specialists.
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Top Reasons to Choose Us
Commercial roofing expertise backed by decades of experience, premium materials, and an unwavering commitment to quality.
Exceptional Craftsmanship
Our skilled roofers deliver precision work on every commercial flat roof project across the GTA.
Premium Quality Materials
We source only top-grade BUR, EPDM, TPO, and PVC roofing systems from trusted manufacturers.
Timely Project Completion
We respect your schedule and budget, completing every project on time with minimal disruption.
Transparent Pricing
Honest, detailed estimates with no hidden fees. Know exactly what you're paying for from day one.
Customer-Centric Approach
From first call to final inspection, we prioritize your satisfaction and peace of mind.
Proven Track Record
38+ years serving Mississauga, Toronto, and the GTA with hundreds of successful projects.
Why GTA Businesses Trust Us With Their Roofs
Top-Line Roofing & Sheet Metal Inc provides high-quality roof installation, repair, restoration and maintenance services. With over 38 years of experience serving industrial, commercial, governmental, and institutional clients across Mississauga, Toronto, and the Greater Toronto Area, we ensure honesty, reliability, and quality in every project.
Top-Line Roofing at a Glance
Decades of experience delivering commercial roofing excellence across the Greater Toronto Area.
Kilometres of roof installed
Skilled Canadian employees
Roofing repairs completed annually in the GTA
Hydro savings with green roofing systems
Pounds of sheet metal installed annually
Years proudly serving Ontario since 1988
What Our Clients Are Saying
Real feedback from businesses across the Greater Toronto Area.
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Frequently Asked Questions
Have questions about commercial roofing in the GTA? We've got answers. Can't find what you're looking for? Get in touch.
How much will a new commercial roof cost?
+How do I know if my business needs a new roof?
+Do you offer emergency roofing repair services?
+What types of commercial roofing systems do you install?
+Which areas in the GTA do you serve?
+Do you provide warranties on your roofing work?
+How long does a commercial roof installation take?
+Do you do roofing repairs in the winter?
+Our Partners & Suppliers
We work with the industry's leading manufacturers and suppliers to deliver premium roofing solutions.
Our Certifications
