New Address – 363 W 9th st. Santa Rosa Ca 95401

Read some of our reviews here on our site and on Yelp:

on site auto repair engine repairs diagnosis services


on site auto repair engine repairs diagnosis services


on site auto repair engine repairs diagnosis services


on site auto repair engine repairs diagnosis services


on site auto repair engine repairs diagnosis services


on site auto repair engine repairs diagnosis services


What Our Clients Are Saying On Yelp

I definitely recommend On Site Auto Repair. The repair was very convenient seeing as how I was away from home. Once I got back, Chris was finishing the job and went over everything very thoroughly. He was blunt and honest about everything that should to be done. I would no doubt have them back for any other repair/maintenance.

Joe L. / Y

On Site Auto Repair is a fast, reliable, honest service. Chris has been working on my cars for more years than I can remember. He has never let me down! Always extremely knowledge and honest and fair. Nice guy and great work! The happiest you’ll be spending money on auto repairs!!

Robin N. / Yelp

The fairest price and Wow, How convenient. They showed up right on time, installed parts that I had purchased and saved me over $500.00. I will use these guys when ever I need auto service.

Anthony M. / Yelp

The best customer service. Honest prices. And they even check the little details without asking. I really appreciate their service. This will now be the place I take my vehicles

Shane S. / Yelp

Great auto repair shop! I’ve had wonderful experiences with On Site Auto Repair. I’ve been coming to Cory and Chris for about a year now. I moved into the area and needed a new mechanic and I’m so glad I found them. They are friendly, reliable, and straightforward with all the work that they do…

Brenda C. / Yelp

I was referred here by a friend when my AC went in a cloud of Freon. I hadn’t had any luck with my previous mechanic. He’d recommended work I knew didn’t need to be done and missed some that was clearly needed…

David B. / Yelp

I’m new to the area and had to find a new mechanic. I found this place through Yelp and I’m so happy to have given them by business. These guys are incredibly friendly and their prices are completely reasonable. They go above and beyond! Don’t go anywhere else!

J.J. / Yelp

Second time I’ve used them for the routine work. Last was  year ago during a previous visit to Santa Rosa. No change in thoroughness of their quality work and their patience with their customers. Oh…I didn’t mention their rates. Totally competitive! So, we have great people, top quality work, and great rates. Regardless of the complexity of the auto work you you need, this is your first stop…period.

Dieter J. / Yelp


Auto Repair In Santa Rosa

On Site Auto Repair in Santa Rosa is a full service auto mechanic shop. Our auto mechanics are certified and here to help you with all of your automotive repair needs. No auto repair job is too big or too small for On Site Auto Repair.
We specialize in all types of auto repair, including: regular maintenance, break/fix, engine repair, troubleshooting and much more! If you are looking for honest and reliable auto mechanics, give us a call today. Ask us about our new customer specials!

on site auto repair engine repairs diagnosis services

Transmission Repair In Santa Rosa

Vehicles are usually described as 5 or 6 “speed” meaning then have that many gear ratios to allow the vehicle to travel at the full range of speeds required and to make use of the engine’s output power as efficiently as possible. Due to their complexity, constant use and function within a vehicle’s operation, transmissions experience a lot of wear and tear. Add to this the fact that many owner’s forget to check and change the fluid on a regular basis and it’s easy to understand why so many people have transmission problems. At On Site Auto Repair in Santa Rosa, our transmission repair technicians can accurately diagnose, repair or replace your transmission. If your are looking for a reliable and honest transmission repair services company, give us a call today!

on site auto repair engine repairs diagnosis services

Brake Service In Santa Rosa

There are several warning signs that your vehicle can give you before your brakes may reach the point of potential failure or extensive repair. Whether composed of ceramic, semi-metallic, or organic materials, brake pads erode each time you depress the brake pedal. If the pads wear down too much without being replaced, the metal housing for the pads will make contact with the metal rotors (or drums), which may produce not only a safety issue but a situation where the rotors/drums are required to be replaced as a result of the prolonged contact of metal parts without the pad buffer. If you are in need of an affordable brake repair mechanic in Santa Rosa, please do not hesitate to schedule an appointment today!

on site auto repair engine repairs diagnosis services

Vehicle Inspection In Santa Rosa

The key to top notch automotive repair and troubleshooting lies in a thorough understanding of what’s actually going on under the hood. Sure, you know that a radiator keeps your engine cool, but understanding how it keeps it cool is the key to solving technical problems efficiently. If you know which parts perform what function, your powers of diagnosis will be much more powerful.

on site auto repair engine repairs diagnosis services

Radiator Inspection Service In Santa Rosa

Ensuring that your vehicle’s engine cooling system is in proper operating condition is extremely essential to engine life and performance. Operating at excessive temperatures can lead to premature engine wear. Your vehicle’s engine cooling system should be checked periodically, and a radiator coolant flush is also recommended to prohibit radiator corrosion. On Site Auto Repair will thoroughly drain and power flush the old coolant and particulates, and refill the cooling system with your vehicle manufacturer’s recommended coolant.