Santiago General Engineering delivers top-notch results with care, safety, and skill. With over 15 years in the field, our team skillfully undertakes excavation, utilities, and site development. Expect clear communication, expert advice, and work done right, on schedule, with no shortcuts.
Proudly serving Sonoma, Napa, Lake, and Marin County and beyond with dependable excavation and site development services for residential, commercial, and public projects.
Foundation digs, roadway cuts, and hillside grading performed with accuracy and attention to detail.
Complete septic system installations from trenching to tank and leach field setup.
Every project is completed to the highest standards with careful attention to long-term performance.
Clients stay informed throughout the process with consistent updates and honest recommendations.
Led by a former union foreman with 15+ years of experience managing large-scale civil projects.
Rooted in Sonoma County, the company values relationships and reputation in the communities it serves.
Book a time for a no-obligation site walk.
Proudly serving Northern California with dependable heavy civil contracting and engineering services for homes, businesses, and public projects.
Get in touch today to request your free estimate or learn more about our heavy civil contractors and site development services. A local expert will respond quickly.
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