Commercial Roofing

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The Most Trusted Commercial Roofing Company in California

Based in Ontario, CA, CRS Commercial is the premier commercial roofing company serving California's commercial, industrial, and multi-family properties. Since 1997, we’ve specialized in high-quality roofing solutions tailored to your specific needs. With OSHA-trained roofing professionals, turnkey installation systems, and industry-leading warranties, we ensure every project is completed to the highest standards.

Whether you need new construction, reroofing, or repairs, CRS Commercial is the reliable commercial roofing contractor you can trust to protect your property and ensure long-lasting performance. Discover why businesses across various industries choose us for their commercial roofing needs.  

New Construction Roofing

CRS Commercial provides expert new construction roofing services for commercial and industrial properties. We specialize in low-slope and steep-slope roofing systems, delivering customized solutions that meet the needs of diverse industries. With seamless project coordination and top-quality materials, we ensure every new roof installation is durable, efficient, and built to last.

Reroofing - Single Ply

When it’s time to replace your commercial roof, CRS Commercial delivers exceptional reroofing services. We assess your property and recommend the best roofing materials, such as TPO, PVC, and metal, for enhanced energy efficiency and durability. Our team ensures minimal disruption to your operations while providing a reliable and cost-effective reroofing solution.

Roof coatings

Roof coatings extend the life of aging commercial roofs by sealing cracks, blocking UV rays, and preventing water intrusion—all without a full tear-off. Applied as a liquid, they cure into a seamless, protective layer that improves energy efficiency, reduces costs, and minimizes disruption to your building operations.

Spray Foam

Spray foam roofing is a cost-effective, energy-efficient solution for commercial buildings. Applied as a liquid that expands into a solid, it seals cracks, insulates against heat and cold, and prevents leaks. Its lightweight, seamless design reduces labor costs, minimizes waste, and extends your roof’s performance in any climate.

Roof Repair & Maintenance

CRS Commercial offers comprehensive roof repair and maintenance services to extend the life of your roofing system. From specialized leak repairs to annual maintenance programs, we help prevent costly damage and keep your roof in optimal condition. Trust our experienced team to handle all your commercial roof care needs.

Low-Slope Commercial Roofing

CRS Commercial specializes in low-slope commercial roofing systems that deliver superior durability and energy efficiency. We offer TPO, PVC, EPDM, modified bitumen, and roof coating solutions designed to withstand California’s climate. Whether it’s new construction or a retrofit, our low-slope systems provide seamless protection for your business while reducing energy costs.

Steep-Slope Commercial Roofing

For commercial properties, such as multi-family housing, requiring steep-slope roofing, CRS Commercial provides a range of high-performance options. Our expertise includes standing seam metal, tile, stone-coated steel, and composition shingle roofing systems. These materials combine aesthetic appeal with long-lasting durability, making them ideal for businesses looking to enhance their property’s functionality and appearance.

Our Projects

30 Years of Turnkey Project Execution in California & Beyond