Using a Contractor  

Contractor's State Licensing Board: 

Contractors are licensed through the California Contractor's State License Board.  

Verify if a contractor is licensed and up-to-date on their Workman's Compensation Insurance and more by checking their license CLSB Check a License

General Advice About Using Contractors:

  • Hire only state-licensed contractors.
  • Check a contractor's license number online or by calling 1 800-321-2752.
  • Get at least three bids. 
  • Get three references from each bidder and review past work in person. 
  • Make sure all project expectations are in writing and only sign the contract if you completely understand the terms. 
  • Confirm that the contractor has workers' compensation insurance for employees or if exempt does not have employees that will be on your job site. 
  • Never pay more than 10% down or $1,000, whichever is less. Don't pay in cash
  • Don't let payments get ahead of the work.
  • Keep a job file of all papers relating to your project, including all payments.
  • Don't make the final payment until you're satisfied with the job and the permit is finaled.


  1. Building Division

    Physical Address
    1600 First Street
    Napa, CA 94559


    Phone: 707-257-9540

  2. Permit Techs

    General Email

  3. Vincent Caballero

    Building Inspector II

  4. Terri Ritchie

    Permit Technician

  5. Anthony Vergara

    Building Inspector I

  6. Sophia Valenti

    Permit Technician

  7. Jason Williams

    Chief Building Official

  8. Trevor Slevin

    Building Plans Examiner