The services we provide in both the public and private sectors are included but not limited to the following:


On-Site Engineering & Asphalt, Inc., provides our customers with a variety services in general site work for both the public and private sectors. We Specialize in School Modernization Projects, Commercial, Retail, Dining, Public Works, Apartments and Mixed Use Projects. There is no project too small or too large for us to handle.

Our staff from the office to the field are highly qualified to achieve success in any project assigned to. Our field employees from our Foremen, Equipment Operators, Lead Men, Grade Setters, Laborers to our Superintendent and Office Manager are "hand picked" and are the best of the best in thier field.

Our Estimating Department not only provides complete and clear bids with no surprises, but we can provide our customers with preliminary budgets to assist their clients with Financing  or design build projects.

We have a wide range of open accounts with material suppliers, vendors, trucking companies and equipment rental companies form the central valley to the foothills. This allows us to service our customers in most Central Valley, Foothill, Bay Area and Napa Valley locations. If you need us we are there.

  • Mass Grading 
  • Finish Grading
  • Excavation 
  • Paving
  • Underground Utilities 
  • Demolition
  • Storm Water Filtration and Retention Systems
  • Site Clearing