Ontario's Trusted Commercial Roofing Experts — GTA & Oakville
Protecting businesses since 1998 with certified installations, emergency repairs, and long-term roofing solutions built to last.
Ontario Tech Roofing is a full-service GTA roofing company. We work on every type and size of commercial roof and industrial roof. From repairs, re-roof to installing some of GTA, ON's most complex multiple-system roofs, we know how to keep our customers happy.
As a full-service roofing company, Ontario Tech Roofing takes pride in working on every type of commercial and industrial roof. We have worked with the largest contractors on roof repairs, re-roofing and industrial roofs.
Our Commercial Roofing Services
Quick, cost-efficient solutions for your commercial roof contractor needs
Townhouse Roofing
Complete townhouse roofing services for developers and property managers across the GTA.
See DetailsMulti-Family Roofing
Multi-family and condominium roofing systems built to commercial standards.
See DetailsSoffit & Fascia Work
Professional soffit and fascia installation, repair and replacement for commercial buildings.
See DetailsMost Trusted Commercial Roofing Repair & Installation in GTA
Whether you own an office or are a tenant at a commercial building or complex, it is imperative that you are able to do business without the worry about a leak or damage. Unfortunately, we have seen far too many times in Ontario that most business owners wait until their roof's condition deteriorates to a point of no return and cost tens of thousands in work. Rest assured, even if your roof seems fine or if you think there might be an issue that needs investigation, be sure to call our team of GTA commercial roofing specialists once a year for a thorough professional inspection.
At Ontario Tech Roofing, we provide an array of roofing services for your commercial needs. This includes re-roofing, repairs, inspections and much more. We are just one call away for any commercial roof repair that comes along your way.
Comprehensive Commercial Roofing Solutions
From new installations to emergency repairs, we deliver durable roofing systems for every commercial property.
Flat Roof Installation
Expert installation of flat roofing systems designed for commercial and industrial buildings.
TPO & EPDM Roofing
Energy-efficient single-ply membrane roofing that reduces cooling costs and extends roof life.
Roof Inspections & Reports
Detailed written inspection reports to assess roof condition, identify issues, and plan maintenance.
Preventive Maintenance Plans
Seasonal maintenance programs to catch small problems before they become expensive repairs.
Emergency Roof Repairs
24/7 emergency response for leaks, storm damage, and structural failures — minimizing business downtime.
Full Roof Replacement
Complete tear-off and replacement with modern commercial-grade materials and full warranty coverage.
Why Ontario Businesses Choose Ontario Tech Roofing
Local GTA Experts
Serving the Greater Toronto Area and Oakville since 1998 — we know Ontario's climate and building codes inside out.
Certified & Insured Team
Fully licensed, insured, and WSIB-compliant so your property and our workers are always protected.
Transparent Pricing
No hidden fees. We provide detailed written quotes so you know exactly what you're paying for before work begins.
Minimal Business Disruption
We work around your schedule to ensure roofing work causes zero interruption to your daily operations.
Our Simple 4-Step Commercial Roofing Process
A clear, transparent path from first call to finished roof.
Free Roof Inspection
We visit your property, assess the current roof condition, and identify all problem areas at no charge.
Custom Written Quote
You receive a detailed, transparent quote outlining scope of work, materials, timeline, and total cost.
Professional Installation
Our certified crew completes the work efficiently using commercial-grade materials and proven techniques.
Final Walkthrough & Warranty
We walk you through the completed work, answer your questions, and hand over your warranty documentation.
Commercial Roofing Systems We Specialize In
We install the industry's most trusted commercial roofing systems, tailored to your building and budget.
TPO (Thermoplastic Polyolefin)
Best for energy efficiency and heat reflection. Ideal for large flat roofs.
EPDM (Rubber Roofing)
Extremely durable and weather-resistant. Perfect for Ontario's harsh winters.
Modified Bitumen
Multi-layer system offering excellent waterproofing for low-slope commercial roofs.
Metal Roofing
Long-lasting 40+ year lifespan, low maintenance, ideal for industrial and commercial properties.
Serving Commercial Clients Across the GTA & Beyond
Trusted by businesses throughout the Greater Toronto Area and surrounding regions.
Frequently Asked Questions — Commercial Roofing
Ready to Protect Your Commercial Property?
Get a free, no-obligation inspection and quote from Ontario's most trusted commercial roofing team.