Commercial Roofing
Commercial Roofing You Can Trust
Built for Performance & Longevity
For over 30 years, Guaranteed Roofing and General Contracting Inc. has been providing dependable, high-quality commercial roofing solutions to businesses and property owners across Ontario. From minor repairs and preventative maintenance to complete roof replacements, our experienced team is committed to delivering top-notch workmanship, clear communication, and exceptional service.
We understand the importance of keeping your building protected while minimizing disruptions to your daily operations, and we work efficiently to complete every project safely, on schedule, and to the highest standards.
Commercial Roofing Services
Commercial Roof Repairs
From minor leaks to storm damage, our experienced team provides prompt and reliable commercial roof repairs to restore the integrity of your roof and help prevent more costly issues down the road.
Commercial Roof Replacement
When repairs are no longer enough, we offer complete commercial roof replacement services using quality materials and proven installation methods designed for long-lasting performance.
Preventative Maintenance Program
Protect your investment with a customized maintenance program that includes regular inspections, proactive repairs, and ongoing monitoring to help extend the life of your commercial roof.
Emergency Roof Repairs
Roof emergencies can happen without warning. Our team responds quickly to address urgent leaks and damage, helping minimize disruption to your business and prevent further property loss.
Commercial Roof Inspections
Whether you're addressing a concern or planning for the future, our thorough roof inspections identify potential issues early and provide clear recommendations to help you make informed decisions.
Commercial Flat Roofing Systems
We install and service a variety of commercial flat roofing systems, delivering durable, weather-resistant solutions tailored to the needs of your building and budget.
Roofing Solutions Designed for Your Business
Your commercial roof is essential to protecting your property and keeping your business running smoothly. We complete every project with efficiency, safety, and long-term performance in mind.
- Winter-ready roofing systems
- Ice dam protection
- Wind-resistant installation
- Long-term durability
Why Businesses Choose Us
Experience
We have been proudly serving our community since 1994, bringing proven expertise to every project. Owner, Rob, has more than 35 years of hands-on roofing experience and personally oversees inspections, estimates, and training to ensure uncompromising standards.
Quality
As a family-owned and operated company, we are committed to delivering quality customer experience defined by craftsmanship, transparency, and premium materials. Every project is guided by integrity, attention to detail, and a commitment to exceeding expectations - not just meeting them.
Expertise
We specialize in complete roofing systems - from ventilation and underlayment to shingles and finishing details. Every layer is installed with precision for lasting durability and protection. As IKO RoofPro Select Contractors and Certified Velux Installers, we uphold the highest standards through ongoing training and industry best practices.
Safety
We maintain full WSIB coverage and comprehensive liability insurance, with safety as a non-negotiable standard on every job. Our team is professionally trained in fall protection, safety compliance, and best-practice installation methods to ensure every project is executed with precision and care.
Protect Your Business with a Roof You Can Rely On
Whether you need repairs, replacement, or a full inspection, our team is ready to help.
Call or email us today to discuss your commercial roofing needs.
Your Commercial Roofing Questions, Answered
What types of commercial roofing systems do you install and service?
Guaranteed roofing works with a variety of commercial roofing systems from flat roofing to asphalt shingles, roof replacement, repair, and new roof installation. We can help determine the right solution based on your building, existing roof, budget, and long-term needs.
How do I know whether my commercial roof needs repair or replacement?
Not every roofing problem requires a full replacement. We assess the condition of the entire roofing system to determine whether repair, restoration, or replacement makes the most sense.
How much does a commercial roof replacement cost?
There is no one-size-fits-all price for commercial roofing. Costs depend on factors such as the size and complexity of the building, roofing system, existing roof condition, materials, etc. Rob, the owner of Guaranteed Roofing, personally completes all inspections and estimates. We provide a detailed assessment and transparent estimate so you can make an informed decision.
Can you repair my commercial roof instead of replacing it?
In many cases, yes. If the existing roofing system is still a good candidate for repair or restoration, we may be able to extend its life rather than recommending replacement. Our goal is to recommend the right solution for your building.
Do you offer emergency roof repair services?
Yes. We provide emergency roof repair for storm damage, active leaks, and urgent roofing issues to help protect your business and prevent further damage.
Can commercial roofing work be completed without disrupting my business?
We understand that your business needs to keep operating. Our team plans projects carefully to minimize disruption to your employees, customers, tenants, and day-to-day operations while maintaining a safe and organized worksite.
What makes Guaranteed Roofing different?
Commercial roofing is a significant investment, and the quality of the installation matters. Guaranteed Roofing is a family-owned and operated company with more than 30 years of experience. We take the time to properly assess your roofing system, communicate clearly about what your building needs, and complete our work with a focus on quality, integrity, and long-term performance.