Tristar Automotive in Santa Rosa, CA.

Meet the Owners

Bringing over 50 years of automotive service and repair knowledge to the table.

Jim Dadaos, owner at Tristar Automotive in Santa Rosa, CA.
Jim Dadaos
Founder - Service Manager
ASE Certified Master Tech. Jim attended Carlmont High School, focusing upon a career in the automotive industry.
Rick Sanguinetti, owner at Tristar Automotive in Santa Rosa, CA.
Rick Sanguinetti
Founding Partner
45+ years experience in the automotive arena. GM & Ford master technician. Automotive technology instructor for over 30 years.


My name is Jim Dadaos, founder of the Tristar Automotive team. I am an ASE certified Tech who spent years with Jaguar, Aston Martin, MG and Triumph, where I entered into management, then moved to Sonoma County to run a Chevrolet Service department. In 1991, I decided to head out on my own, bringing Rick Sanguinetti and Ron Parola together to form the Tristar team!

Collectively, we bring over 50 years of automotive experience to the table, with a wide range of dealer training from GM and Ford to Honda, Jaguar, Saab, Aston Martin, Fiat, and the list goes on and on. As a result of having many years of experience involved in restoring and collecting cars of their own and for others, Rick and Ron also had developed a vast collective knowledge of the complete restoration process.

Throughout the years, we have added additional ASE certified technicians who have a broad knowledge base of the automotive industry. They are Smog, Brake & Lamp Certified and regularly attend updated training courses in all aspects of automotive repair.

We look forward to meeting and exceeding your automotive repair requirements!

Jim Dadaos

Our Team

Meet Our Amazing Automotive Service Technicians

Our technicians maintain Automotive Service Excellence (ASE) certifications in order to apply the latest technology to your vehicle repairs. We are also members of the Automotive Service Association and the NAPA Auto Care organization. You can trust your vehicle is in good hands with Tristar Automotive!

Schedule Service or Repair Now

Guaranteed Work by ASE Certified Technicians

Call: 707-571-8866