Hours: Mon-Fri: 9:00 am - 5:00 pm
Trusted Roofing Experts in Thunder Bay
Protecting Northwestern Ontario homes and businesses for over 35 years. As the region’s only GAF Master Elite roofer, we deliver precision installations, repairs and roofing solutions you can rely on.
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OUR SERVICES
#1 Roofing & Exterior Services in Thunder Bay & Northwestern Ontario
At JM Northshore Roofing, we provide specialized roofing solutions for residential and commercial properties throughout Thunder Bay and the surrounding region. As Northwestern Ontario’s only GAF Master Elite contractor, we offer industry-leading warranties and precision craftsmanship.
Expert installation of asphalt shingles and cedar shakes. GAF Master Elite certified for superior materials and warranty options.
High-performance roofing systems for Thunder Bay businesses. Professional installation and preventative maintenance.
Specialized masonry maintenance and structural repair to ensure your chimney remains weather-tight and safe.
Precision-fit, leak-proof skylight solutions designed to brighten your home while withstanding Northern Ontario weather.
35+
Years of Experience
Why Thunder Bay Trusts JM Northshore Roofing
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GAF Master Elite Certified -
Fully Licensed & Insured -
Decades of Family Expertise
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Proven Local Reputation
100% satisfaction guaranteed.
Speak with our team today about your residential or commercial project
OUR PROCESS
Our Proven Process: Quality from Inspection to Completion
Step - 1
Comprehensive Roof Inspection
We begin every project with a detailed, on-site assessment by our experienced team. We don’t guess; we physically inspect your roof’s condition, ventilation, and flashing to provide an accurate, transparent report of your home’s specific needs.
Step - 2
Expert Craftsmanship & Installation
As Northwestern Ontario’s only GAF Master Elite contractor, we execute repairs and installations with precision. Whether it’s asphalt shingles or cedar shakes, our family-run team follows rigorous, industry-leading standards to ensure a weather-tight, high-performance roof.
Step - 3
Guaranteed Performance & Support
We stand by our work with industry-best warranties and a 100% satisfaction guarantee. From the final quality inspection to ongoing support, we ensure your roof remains a durable, safe asset for your family for years to come.