Who We Are

Welcome to Santiago General Engineering, a cornerstone of the paving and general engineering industry based in Sebastopol, CA. Serving both residential and commercial clients in Sonoma County, and the surrounding areas, our business is rooted in a deep commitment to safety, quality, and customer satisfaction. With over 20 years of industry experience, our family-owned and operated team brings unparalleled expertise to every project, whether it’s asphalt paving, grading and excavation, underground utilities, septic systems, or emergency repairs.

Our unique approach sets us apart from competitors, focusing on a “safety first” philosophy. We go beyond the basic requirements to ensure each job meets the high standards of the industry, the State of California, and our rigorous company criteria. Our dedication to detail, combined with our passion for what we do, allows us to take on any site work project, big or small, without ever compromising on quality or safety.

We pride ourselves on building lasting relationships with our clients, and keeping open lines of communication throughout each project to ensure your needs are met and expectations exceeded. Our skilled team is ready to bring your vision to life with precision, expertise, and the kind of care that only a family-operated business can provide.