All Ontario Roofing & Custom Coatings

All Ontario Roofing – Specialists in Flat Commercial & Residential Metal Roofing At All Ontario Roofing, we’re proud to be the trusted local choice for commercial flat roofing and residential roofing solutions across Southwestern Ontario. Our team is committed to delivering dependable, long-lasting, and cost-effective results, using only premium materials to ensure your roof stands the test of time. For commercial property owners, we’ve installed hundreds of high-quality PVC and TPO membrane systems—keeping buildings secure, weatherproof, and energy-efficient. These advanced roofing solutions not only protect your investment but also help reduce heating and cooling costs. For homeowners, our durable and sustainable steel roofing offers a smart upgrade for both new builds and established family homes. Designed to replace outdated shingle and tar roofs, our steel systems provide an elegant, modern look while delivering exceptional value and longevity.