Auto Repair Santa Rosa & Transmission Repair Santa Rosa On Site Auto Repair is a full service auto repair shop in Santa Rosa. Our auto mechanics are experts in car repair, transmission repair, brake repair, steering & suspension repairs, auto heating & AC cooling system repairs, auto factory service, tuneups, radiator repairs, new shocks, new brakes & more. We are also a tire shop in Santa Rosa. Our tire shop sells new tires in Santa Rosa too. At our Santa Rosa Auto Repair Shop we service cars, trucks, SUVs, vans, commercial vehicles and electric vehicles. Our Santa Rosa auto mechanics are certified in all makes & models. Our transmission repair shop has the best transmission mechanic in Santa Rosa. Let us service your vehicle today!