About Us
Company History
Tight Access Excavation, Inc. was founded in 1990 and is headquartered in Sebastopol, California.  Our yard is centrally located in Petaluma, California.  Serving the Sonoma, Marin, Napa and San Francisco Counties.  24 years ago, Mike started the company as an Owner/Operator and now has a fleet of trucks, equipment and
dependable employees.
Founder Mike Sedano is involved in the estimating, customer service, as well as the day-to-day operations of the company.  Mike works in the field along side of his employees to be sure our customers are nothing less than extremely satisfied.  He and his wife Gloria have built the company over the past 24 years. 

Residential - Commercial
General Engineering Contractor
Lic # 687105


Services Offered

Under Structure Excavation

Building Pads & Pier Drilling

Complete Site Work
Hillside Excavation Land Clearing & Tree Removal Asphalt Paving
Complete Site Work Swimming Pool Excavation/Demolition Horizontal Directional Boring
Drainage Underground Utilities Trenchless Pipe Installation
Drilling Septic System  
Trenching and Footings Certified Chance Helical Pier Installers  

Serving the Bay Area and San Francisco since 1990 707-795-0369
Our goal is to provide high quality work and excellent customer service at a fair price.