Who We Are
Built on Precision, Performance & Safety
James Sommerville, Inc. is a leading heavy civil engineering builder serving residential, commercial, industrial, and municipal clients in Monterey, Santa Cruz, San Benito, and Southern Santa Clara counties. Over nearly four decades, we have established a reputation for flawless execution of grading, asphalt paving, and dry/wet underground utility systems.
We operate on **Lean Construction** principles—combining rigorous planning, resource optimization, and modern machinery to eliminate waste and deliver value directly to our clients' bottom line.
Lean Construction Focus
Efficiency, schedule reliability, and waste reduction drive every scoop and paved foot.
Caterpillar-Powered Fleet
Our company-owned machinery ensures maximum uptime and advanced telemetry precision.
Ready for Work