Your building’s roof protects your business, your inventory, and your people. When it needs work, you need a roofing contractor who shows up on time, minimizes disruption, and delivers a result you can actually rely on for the next 20–40 years.
It’s a Business Risk
A leaking roof on a commercial property means more than just water damage. It means disrupted operations, potential inventory loss, liability concerns, and in some cases, building code violations that can affect your occupancy status.
Calgary’s climate makes this worse. Freeze-thaw cycles crack membranes, hailstorms compromise flat roof systems, and heavy snow loads put older commercial roofs under stress they weren’t designed to handle indefinitely.
At Lumina Roofing & Exteriors, we work with property managers, building owners, and general contractors across Calgary on commercial roofing projects of all sizes, from small retail units to large industrial facilities. We understand that the goal isn’t just fixing a roof. It’s keeping your business running.
For buildings that also need exterior work, we handle siding installation and eavestrough systems as part of a complete exterior package.
Minimal Disruption to Your Operations
We plan every commercial roofing project around your schedule. That means coordinating work during off-hours, weekends, or phased sections when needed; so your business keeps running while we do our job. This matters most for retail, healthcare, and food service properties where operations can’t stop.
Clear Timelines and Budget Certainty
Nothing creates more friction on a commercial project than a budget that moves and a timeline that doesn’t hold. We provide written project proposals with defined scope, material specs, and milestones. If something changes, we tell you before it affects cost, not after.
Proper Assessment Before Any Proposal
We don’t quote commercial roofing projects from the street. We do a proper on-site assessment of your current roof system; membrane condition, drainage, penetrations, insulation performance, and give you a proposal based on what your building actually needs. According to National Research Council Canada, commercial roofing systems must meet specific performance standards under the National Building Code. We make sure every project we deliver is fully compliant.
Systems Engineered for Calgary's Climate
Flat commercial roofs in Calgary face a specific set of challenges: UV degradation in summer, thermal contraction in winter, hail impact, and ponding water from snow melt. We recommend and install roofing systems — TPO, EPDM, modified bitumen, based on your building’s specific exposure, slope, drainage, and insulation requirements.
Manufacturer Warranties on Materials and Installation
We install commercial roofing products from manufacturers like GAF, Polyglass, and Owens Corning that carry real warranties, not just on the material, but on the installation when done by a certified contractor. We ensure your warranty documentation is complete and in your hands before we close the job.
BBB A+ Accredited — We Stand Behind the Work
We’re accredited by the Better Business Bureau of Calgary with an A+ rating, with 126 verified reviews at 4.9★. We’re a local company — not a travelling crew — and we’re accountable to our reputation in this city.
We handle every stage of commercial roofing, new construction, full replacement, repairs, and ongoing maintenance contracts.
Flat roofs are the most common system in Calgary commercial buildings; and one of the most demanding to install correctly. We install complete flat roofing systems including insulation, vapour barrier, drainage, and membrane. Whether it's a new build or a full teardown and replacement, we manage the entire scope.
TPO (Thermoplastic Polyolefin) is one of the most popular choices for modern commercial flat roofs. It's highly energy-efficient, UV-resistant, and cost-effective over a long lifespan. We install TPO systems with heat-welded seams, the most durable jointing method available, for a watertight result that holds up through Calgary winters and summers alike.
EPDM (Ethylene Propylene Diene Monomer) rubber roofing is well-proven in cold climates. It remains flexible in extreme cold, resists UV degradation, and delivers excellent long-term waterproofing performance. A strong choice for warehouses, industrial buildings, and any property where longevity and low maintenance are priorities.
Not every commercial roofing issue requires a full replacement. We handle targeted repairs, membrane patches, flashing repairs, drain clearing, seam re-welding, that extend the life of your existing roof and prevent small issues from becoming major business disruptions. We also offer preventive flat roof repair and maintenance contracts for property managers who want proactive coverage.
Warehouses, manufacturing plants, logistics centers, and industrial facilities have specific structural and load requirements. We have experience managing large-scale industrial roofing installations with minimal operational disruption, coordinating access, staging materials, and working in phases when the facility needs to remain active.
Working on a new build? We collaborate with general contractors, developers, and builders from the design phase through installation. We provide spec documentation, material certifications, and code compliance sign-off required for occupancy. See our new construction roofing page for more details.
Choosing high-quality commercial roofing in Calgary means your roof will be durable, energy-efficient, and give you peace of mind. At Lumina Roofing, we partner with property managers, business owners, and contractors to provide dependable results built for Calgary’s weather and building codes.
At Lumina Roofing & Exteriors, we provide dependable solutions for commercial roofing in Calgary, designed specifically for local weather conditions. Whether you’re replacing an old roof or building a new one, our skilled team ensures your roof is built to last and adds value to your home.
We visit your property, inspect the current roof system in detail, and provide a written proposal with full scope, material specifications, and timeline. No obligation.
Step 2 - System Selection and Project Planning
We review the options with you and plan the project around your building’s operations to minimize disruption.
Step 3 - Professional Installation by a Certified Crew
Our team installs the system to manufacturer specifications and National Building Code requirements throughout the project.
Step 4 - Final Inspection, Documentation, and Sign-Off
On completion, we do a full inspection with you, provide warranty documentation, and ensure all required paperwork is in order for your records.
Let’s Start With an Assessment.
Whether you’re managing a leaking warehouse roof, planning a full membrane replacement, or coordinating a new commercial build, we’re the team to call in Calgary.
We show up, do the assessment properly, give you a written proposal you can actually use, and deliver the project on time without disrupting your business more than necessary.
We manage commercial roofing projects across Calgary and the broader Alberta region:
Local Roofing Knowledge
We understand Calgary’s weather and building regulations, so we recommend roofing systems that perform year-round.
Certified & Experienced Crew
Our team is trained to work on all types of commercial and industrial roofing safely and efficiently.
Minimal Disruption to Business
We work around your schedule and minimize interruptions to keep your business running smoothly.
Fair Quotes & Honest Advice
We explain every option clearly—no hidden fees or upselling. Just solid, trustworthy service.
The company is fully licensed and insured and has earned recognition for professionalism and high standards in the roofing industry.
EXCELLENT
Based on 127 reviews
We install TPO, EPDM, modified bitumen, and traditional flat roofing systems. The right choice depends on your building’s size, structure, budget, and how much insulation performance you need. We recommend a system based on your specific building after an on-site assessment — not just what’s easiest for us to install.
With proper installation and regular maintenance, most commercial roofing systems in Calgary last 20–40 years. TPO and EPDM systems typically fall in the 25–35 year range. Modified bitumen systems average 20–30 years. The biggest factor after material quality is installation, a well-installed roof of any type will significantly outlast a poorly installed one.
Both perform well in Calgary. EPDM has a slight edge in extreme cold due to its flexibility at low temperatures. TPO offers better energy efficiency due to its reflective white surface, which can reduce cooling loads in summer. For most Calgary commercial buildings, either system works well — we’ll recommend based on your specific situation.
We plan the project schedule around your operations from the start. For businesses that can’t close, we work in sections, schedule noisy or disruptive phases outside business hours, and maintain clear site barriers throughout. We’ve completed projects on occupied retail spaces, medical facilities, and food service buildings without shutting them down.
Yes. We offer preventive maintenance programs for commercial property managers who want scheduled inspections, drain clearing, minor repairs, and documented maintenance records. Regular maintenance is the most cost-effective way to extend the life of any commercial roof. See our flat roof repair and maintenance page for details.
Best Commercial Roofing in Calgary
That’s why it’s important to schedule a roof inspection after hail in Calgary as soon as the storm passes. At Lumina Roofing, we provide fast, reliable evaluations to help prevent further damage and start repairs immediately. Our storm restoration experts make sure your roof is secure, weather-ready, and fully restored.
Lumina Roofing & Exteriors
4121 23b St NE Unit 4221, Calgary, AB T2E 7V9, Canada
A strong commercial roofing in Calgary protects your business, inventory, employees, and customers. Calgary’s tough weather—from heavy snow to strong sun and hail—can quickly damage a weak or old roof.
