Nina was absolutely amazing. She got us in the day we called, even though they were already all booked up, and our car was done that night. She kept me updated throughout the entire process, including sending me a quote very quickly, which was right on. The price was very reasonable, and much lower than I thought it was going to be! Taking your car in for repairs is usually stressful, but this experience wasnt! Definitely will take our vehicles to them again!

Went in to have my alternator replaced. They got me in immediately. Constant updates were so appreciated. And they even fixed my driver side door without being asked. Cust. Srvc: 11/10. I HIGHLY recommend.

This is easily the best repair shop I have ever been to. Honestly, I no longer fear taking my car in to the shop after dealing with this fantastic company. We brought in our Nissan today, and we got an oil change and brakes installed. When we showed up to pay, we found out that Joe had also taken the time to pull out a giant dent in our bumper, and fixed our broken windshield wiper that multiple shops had refused to work on. They just decided to fix these issues for free. SUCH GREAT CUSTOMER SERVICE, AND GREAT KNOWLEDGE. I never write reviews, but these guys are AWESOME! thanks again!

Had a problem with my car that other shops couldn’t diagnose. Was recommended to try here and I couldn’t be happier I chose them. Not only did they find my problem but they took the time to show me and explain what it was. It was just a different experience for a repair shop in the best way it could

Amazing place to trust with your vehicle and your money. They did more than exceptional work along with just as good customer service. 100% use this place. I will be a returning customer.

Nina and Joe went above and beyond for me. Great experience here 5/5 would recommend Guaranteed Auto Repair

They took my car in the day I called for repairs and I got it back the next morning. They were very helpful and honest. I will definitely be going back!!

Great guys do some fantastic work. Owner drives by our shop everyday. I want to drive that one!

Great place to get excellent service & very knowledgeable all around. Very reasonable !

Best shop in town. Quality work, I trust them with anything I need

These guys are excellent, highly recommend!

Joe and Nina are honest and do great work. Theyll give it to you straight and are extremely helpful.

Great work! Their name says it all!!

Joe does great work. And hes honest. And has good prices.

I have know Joe For a Lot of years. He knows A lot about auto repairs. Does a great job.Easy to get to.

Love these two!! Nina is a no nonsense straight shooter that is not going to quote you exorbitant prices or tell you you need something fixed that is unnecessary!! Her husband gets it done and has extensive knowledge!! They are a great duo and an asset to Billings!!

Great service. Very reasonably priced and got me in-and-out extremely quickly.

Not a better, or more honest mechanic anywhere. Plain and simple. Joe is awesome very friendly and clean shop with a clean place to relax if you are waiting .

Joe went above and beyond to help our son when he was traveling home from Bozeman to Colorado. He stayed a bit late to fix his car so that my son and his friends could make it home for Thanksgiving. We highly recommend them - friendly, affordable, and just great people. And a shout-out to Agave Towing next door! Many thanks!

This gentleman at this business took care of my vehicle and told me exactly what was wrong with it!! I will definitely recommend and return to this place if needed!! Thank You

AC went out in my van on Friday afternoon and by Saturday Morning Joe had it fixed. Brrrr its cold in here!

Guaranteed Auto owners and mechanics are the best of the best! They are honest, trust worthy, and hard working. Wont take our vehicles anywhere else!

Always helpful and honest. They have gone out of their way to help solve vehicle issues and are reasonable in their fees.

Deal with the owner very capable and inexpensive.

Awesome, dependable, honest.

Wont take my card anywhere else

Perfect