Harris Excavation is a licensed California general engineering contractor (CSLB #1117960) founded in South San Francisco with the purpose of redefining quality and communication in construction. We proudly serve Foster City and the surrounding San Francisco Bay Area Peninsula, including South San Francisco, Millbrae, San Mateo, Redwood City, Menlo Park, Palo Alto, Sunnyvale, Santa Clara, and San Jose, as well as the Eastern Sierras and Mono County, including Mammoth Lakes, June Lake, Bridgeport, and Bishop.

We specialize in residential and commercial excavation, grading, trenching, drainage systems, erosion control, foundation and footing excavation, underground utility installation, land clearing, driveway grading, and site preparation. Our clients include homeowners, property managers, builders, and developers throughout Foster City and the greater Bay Area. We understand local soil conditions, permitting requirements, and best practices for sustainable construction in Northern California.

As a CA Licensed Timber Operator (#B014361), we also deliver wildfire mitigation, defensible space, and fuel reduction services throughout San Mateo County and the Eastern Sierras. Our mission is simple. Build Smarter. Dig Deeper. We leverage modern digital project management tools to keep clients informed about progress and costs at every step. Call (310) 346-8580 or email estimating@harrisexcavationco.com for a free estimate.