Johnston General Engineering
We specialize in excavation, grading, and construction site preparation. Our service area covers Napa, Sonoma, and St. Helena and the surrounding communities.
Local Excavating Contractor
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Our Mission
Johnston General Engineering is a construction company based in Napa California. Specializing in excavating, grading, and underground utility construction. As a general engineering contractor, we provide services to contractors, property owners, and wineries in Napa and Sonoma County. Johnston General Engineering provides an array of site work related services including land clearing, earthwork, and drainage infrastructure construction. Fire protection is one of our primary services. Johnston General Engineering constructs water tank pads, underground piping, fire hydrant and fire apparatus installation. Johnston General Engineering has the experience and resources to get the job right!