At Gau Mal Exteriors, we believe a good roof should stand the test of time. That’s why our focus is on preserving, protecting, and extending the life of your roof for generations. With expert craftsmanship and trusted materials, we give your roof every chance to perform at its best before ever suggesting a replacement. Roof Replacements is our last resort — only recommended when repairs or restoration can no longer safeguard your home. Our commitment is simple: maximize value, minimize unnecessary costs, and always cover what matters most.
We're Different!
At Gau Mal Exteriors, we do roofing differently. While many companies push for costly replacements, we believe in giving our customers real options. That’s why we proudly offer advanced GoNano sealant technology—a proven solution that can extend the life of your roof, protect it from the elements, and save you money. By focusing on preservation first, we help homeowners get the most out of their investment, while still providing expert roof replacements only when absolutely necessary. With us, you’re not limited to one choice—you get a roofing partner committed to protecting and preserving what matters most.
Restore and Extend your roof.
Nanotechnology.
The Future of Protection.
GoNano is a revolutionary nanotech technology coating designed to protect and extend the life of your roof. Instead of replacing shingles, GoNano works at the microscopic level—sealing tiny pores and cracks to create a durable, water-repellent shield. This invisible barrier helps prevent leaks, resists UV damage, restores lost flexibility, extends its lifespan and stops moisture from penetrating, all while keeping your roof looking newer for longer. At Gau Mal Exteriors, we use GoNano as a smarter, more sustainable option for homeowners who want to preserve their roof, save money, and reduce waste without compromising on protection. With GoNano, we don’t just fix roofs—we cover what matters most.
Roof Replacements
When it’s time for a new roof, Gau Mal Exteriors delivers installations built to last. We use only high-quality, industry-leading products designed to withstand Canada’s toughest weather, while enhancing the beauty and value of your home. Every roof we install is backed by expert craftsmanship, attention to detail, a commitment to durability, and most importantly, PROTECTED with our revolutionary nanotech sealant GoNano — giving you peace of mind for generations to come. With Gau Mal Exteriors, a new roof isn’t just protection, it’s an investment in your home’s future and what matters most.
Our Process
Inspect, Protect,
Preserve.
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Step 1
Free Inspection
Our experts inspect your roof to determine the best services and/or products for your needs. We never recommend replacement unless it’s the best option.
Step 2
Protection
Once we know what your home needs, we use high-quality materials and expert installation to strengthen and safeguard your roof. This step ensures your home is well-protected against weather, leaks, and future damage.
Step 3
Preservation
Our goal is to make your roof last for generations. Through craftsmanship built to endure and guidance on proper care, we help preserve both your investment and your peace of mind.