Hummer Auto Repair Shop in Santa Rosa, CA

Shape Effect | Transco Auto & Diesel Repair

Service and Repair of HUMMER Vehicles

Transco Auto & Diesel Repair in Santa Rosa, CA has a team of specialists dedicated to Hummer vehicles. Marketed by GM from 1999 through 2010, Hummer vehicles are no longer being made, but they remain versatile recreational vehicles that combine size, status, and immediate recognition into one huge package. Whoever said that good things come in small packages never took the Hummer into consideration. The civilian version of the military Humvee, Hummers can be used on or off road in nearly any environment. Each Hummer is as unique as its owner. A vehicle this individualized needs specialized care and maintenance.

Off-roading can cause a lot of wear and tear on a vehicle—even if that’s what a vehicle like the HUMMER is designed for. Excellent service and routine maintenance will keep your HUMMER reliable through all terrain. At our shop, we offer individualized high-quality service to keep your Hummer in optimum condition. Whether you drive an H1, H2, or H3, we are qualified to meet all of your automobile’s needs. From major repairs to routine services, our expert technicians stand ready to offer nothing less than the best in customer and car care.

Unlike other shops, we don’t just focus on the vehicle. From the moment you enter our door until you drive away completely satisfied, we strive to offer an excellent customer service experience.

Our certified technicians are always happy to answer any of your questions, and we work hard to get you back on the road (or off-roading) as quickly as possible!

Give yourself and your Hummer the service you deserve—Call our shop or stop in to schedule an appointment today!

Rely on the Word of Others

Trusted by your neighbors for honest repairs in Santa Rosa, CA

Reviews Stars Rating | Transco Auto & Diesel Repair

5-star Review by Michael H

Dave and his team did an excellent job with one of my shops vans. The van was diagnosed the first day, ordered necessary parts and got the van back to me in a timely matter and the cost was very reasonable.  Thanks Team Transco!

Reviews Stars Rating | Transco Auto & Diesel Repair

5-star Review by Tyler Schallert

Dave got my truck in same day for a very reasonably priced diagnostic. He found the issue and was very honest and didn’t try to upsell me on extra work I didn’t need and instead let me know it was a quick and easy repair. I will definitely be using him for any work needed on my cars in the future!

Services We Offer in Santa Rosa, CA

Everything your vehicle needs — under one roof

Transmission Repair

Your transmission is the link between your engine and your wheels, and keeping it in top condition is essential for reliable performance. Our ATRA-certified technicians diagnose and repair transmission issues on automatic, manual, and semi-automatic vehicles with precision you can trust.

View Page >

Engine Repair

Your engine powers everything, and even minor issues left unaddressed can lead to costly repairs down the road. Our ASE-certified technicians use advanced diagnostic equipment to accurately identify and resolve engine problems on foreign and domestic vehicles.

View Page >

Diesel Repair

Diesel engines require specialized knowledge and equipment to service properly. Our experienced technicians handle everything from glow plug replacement and fuel injector service to full diesel diagnostics, keeping your diesel-powered vehicle running at its best.

View Page >

Hummer Repair Nearby

Expert Hummer Repair and Maintenance in Santa Rosa, CA and the Surrounding Areas

Located in the heart of Santa Rosa, CA, Transco Auto & Diesel Repair has been a trusted name in automotive service for over 60 years. Our shop on Santa Rosa Ave is easy to find and convenient to reach for drivers throughout Sonoma County and the surrounding region. Whether you need transmission repair, diesel service, engine work, or routine preventive maintenance, our ASE-certified technicians are ready to help you get back on the road with confidence. We proudly serve generations of families who have counted on us for honest, reliable repairs.


At Transco Auto & Diesel Repair, we make every visit as hassle-free as possible. We offer 24-hour key drop-off so you can bring your vehicle in on your schedule, and our complimentary pick-up and drop-off service within a 7-mile radius of the shop means you never have to worry about a ride. As a NAPA AutoCare Center, ATRA-certified shop, and AAA Approved Auto Repair facility, we hold ourselves to the highest standards in the industry. Drivers from across Sonoma County and beyond trust us to deliver quality workmanship and straightforward service every time.

  • Bodega Bay
  • Boyes Hot Springs
  • Cloverdale
  • Cotati
  • El Verano
  • Forestville
  • Fulton
  • Graton
  • Guerneville
  • Healdsburg
  • Kenwood
  • Larkfield-Wikiup
  • Monte Rio
  • Occidental
  • Petaluma
  • Rohnert Park