O'Hara's Son Roofing Company

O’Hara’s Son Roofing (OSR), established in 1987, is a family-owned and operated roofing company based in Chicago, IL. We are a national full-service contractor working in the commercial and industrial roofing markets. We specialize in the installation of numerous styles of roof applications and coatings. Additionally, we provide extensive roof repairs, OSHA-compliant safety items, and renewable energy solutions. We know that an investment in a new roof is one of the most important decisions you can make when upgrading your business or property. Our mission is to provide the highest quality service, materials, and workmanship to maintain our reputation as one of the nation’s best commercial roofing companies. As of 2024, OSR ranks among the Top 20 Roofing Contractors in the country. We pride ourselves on continual improvement in our field.