Opus Contracting is a licensed California general contractor serving Bay Area homeowners, property managers, and commercial clients. We specialize in roofing, roof replacements, commercial flat roof coatings, leak detection, exterior repairs, and restoration work built to extend the life of your roof and protect what's underneath. We focus on craftsmanship, clear communication, and durable workmanship built for Bay Area weather. Every project is handled with the professionalism and quality you'd expect from a premium contractor. Whether you manage a commercial portfolio, oversee an HOA, or own your home, we deliver honest assessments, detailed scopes, and work backed by warranty. Licensed, insured, and locally operated. and BBB accredited Antioch, CA, USA Concord, CA, USA Modesto, CA, USA Oakland, CA, USA