Commercial Flat Roofing in Ottawa
Installation, Repairs & Maintenance for Commercial, Industrial & Institutional Buildings
Your roof is more than a barrier— it’s the backbone of your building’s performance.
At Markelangelo’s Roofing, we specialize in commercial flat roofing systems designed to withstand Ottawa’s climate, support heavy-duty operations, and deliver long-term value. Whether you manage a distribution center, educational facility, healthcare campus, or multi-tenant property, we deliver reliable protection with minimal disruption.
Why Property Owners Trust Markelangelo’s:
-
Proven Experience in Commercial Roofing
Our team has over two decades of experience managing large-scale flat roofing projects for public and private buildings across Eastern Ontario. -
Turnkey Project Management
From inspection and tear-off to insulation, waterproofing, and drainage, we handle the entire project with minimal impact on your operations. -
Built for Durability
We install premium systems built to last 20+ years, with manufacturer-backed warranties and long-term maintenance options. -
Fully Insured & Safety Certified
We meet all commercial roofing regulations and jobsite safety standards— so you can stay code-compliant and liability-free. -
Responsive & Transparent
We communicate clearly, show up on time, and stand behind our work. That’s how we’ve earned the trust of Ottawa’s most respected facility managers and developers.
Understanding Flat Roofing
Flat roofing is the go-to for commercial, industrial, and institutional buildings. It features a low slope (under 10°) that efficiently drains water through internal systems like drains or scuppers. These roofs are built with:
- A rigid deck (wood, concrete, or steel)
- Thermal insulation
- A waterproof membrane (like TPO, EPDM, or modified bitumen)
Why it works:
Flat roofs maximize usable space—ideal for HVAC units, solar panels, skylights, or rooftop features. They’re cost-efficient, fast to install, easy to maintain, and fit seamlessly with modern architecture.
Our Commercial Flat Roofing Systems
We install and service all major commercial flat roofing systems with certified precision and manufacturer-grade materials:
TPO
(THERMOPLASTIC OLEFIN)
Highly reflective and energy-efficient. Great for large warehouses, retail centers, and LEED-focused buildings.
EPDM
(Rubber Roofing)
Flexible and durable, ideal for schools, hospitals, and low-slope structures requiring proven weather protection.
Modified
Bitumen
Multi-layered protection with resistance to foot traffic, hail, and UV—perfect for high-traffic rooftops or complex drainage layouts.
Our Process:
Flat Roofing Done Right
Initial Consultation & Roof Assessment
We inspect your roof structure, drainage system, and building use to recommend the right system for your needs and budget.
Detailed Scope & Quote
Transparent proposals, clear timelines, and multiple material options with pros and cons explained.
Permit & Safety Planning
We coordinate with local by-laws, building codes, and on-site logistics for seamless execution.
Professional Installation
Our experienced commercial crews work safely, efficiently, and with full site protection protocols in place.
Final Inspection & Ongoing Support
We complete a final walkthrough, provide warranty documentation, and offer preventative maintenance packages.
Serving Ottawa & Surrounding Areas
We proudly offer residential and commercial roof snow & ice removal in Ottawa and surrounding communities, including:
Nepean, Kanata, Orleans, Stittsville, Barrhaven, Gloucester, and beyond.
Client testimonials:
Thank you to all your roofers for going above and beyond 🙂
I would recommend to anyone in Orleans that needs roofing repair to hire Markelangelo's. Thanks.
The installation team, led by Stephen, did an outstanding job. He was polite, professional, and incredibly helpful in answering all my questions. On top of that, he went above and beyond by checking my roof and fixing broken shingles, even though it wasn’t part of the contract. He truly treated the job as if he were working on his own home. Stephen was so great to work with that I plan to request him specifically for my upcoming roofing project.
Thanks for the great work!
The pricing was extremely competitive and their guarantee is second to none
The crew was punctual, polite and knowledgeable. Michael was in charge of this very professional crew and made sure everything was done as promised in a timely and tidy manner. They did a great job protecting the property before they started and cleaned up after they were done.
I would not hesitate to recommend this company to anyone in need of a new roof.
Kevin came out took a look at where we had a leak, then looked at the roof and flashing tracing back from the leak. Kevin then proceeded to inspect the attic for any signs of water damage or leaks, and even went up on one of the secondary roofs to check if the boards were stable.
The job was completed in less than two weeks from the time we signed with Markelangelo's Roofing.
We are very pleased with Markelangelo's Roofing and would highly recommend them for any roofing contract.