Callahan Auto & Diesel, founded by Preston Callahan in 2010, is a premier automotive and diesel repair shop located in Downtown Mesa. The business has expanded significantly, now featuring a spacious facility and a dedicated team of skilled technicians focused on providing excellent customer service. Callahan Auto & Diesel is known for its impressive warranties, including a 2-year/24,000-mile warranty on auto repairs and a 3-year/36,000-mile warranty on transmissions. Customers value the honest work and reliable service, often mentioning how the team is flexible with scheduling. Whether it's a routine check-up or urgent repairs, the staff are recognized for their friendliness and effective communication. Many customers recommend Callahan Auto & Diesel for their strong work ethic and commitment to fixing vehicles efficiently. The team handles everything with expertise, ensuring that customers feel respected and cared for, building lasting relationships in the process.
Callahan is awesome! So knowledgeable and helpful! So happy we found them! I’m taking our RV to them on Monday and won’t ever take it anywhere else if we can avoid it! Thanks so much, Callahan team!
June 2026
Wouldn’t take my Acura RDX anywhere else for service and repair when necessary. Love these guys.
April 2026
One of the best experiences I’ve had at an auto shop. This place is honest and fair! I may never go anywhere else. 😄
