Horizontal Directional Drilling & Excavation Services

Directional Drilling, Excavation & Underground Utility Installation in Sonoma, Marin & Napa Counties

Tight Access Excavation provides professional horizontal directional drilling, directional boring, trenchless utility installation, excavation, and underground utility services throughout Sonoma County, Marin County, and Napa County. Since 1990, our experienced team has completed residential and commercial projects requiring specialized equipment, careful planning, and dependable underground construction solutions.

Our horizontal directional drilling and directional boring capabilities allow us to install underground utilities with significantly less surface disruption than conventional open-trench excavation. We work with water lines, sewer lines, electrical conduit, gas lines, communications, fiber optic conduit, and other underground utilities while navigating challenging terrain, limited-access properties, roads, driveways, landscaping, and existing improvements.

From trenchless utility installation and tight-access excavation to larger residential and commercial projects, Tight Access Excavation provides the experience, equipment, and expertise needed to complete demanding underground projects efficiently and professionally.

We are a family owned and operated company headquartered in Sebastopol, California. For the last three decades, we have been dedicated to serving the needs of homeowners and business owners throughout the San Francisco Bay area.

Residential - Commercial
General Engineering Contractor
License # 687105
707-795-0369

our services