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Giannini's Auto Service is a one of a kind auto repair facility. We are family owned and have been in the same location for 26 years. We took the time through detail tracking and testing to enable every car owner to keep their vehicle dependable for 250,000+miles. The maintenance schedule in the owners' manual is not written to help you avoid buying a new car.

Does the phrase " Ever since I paid off my car, or my warranty just expired, I have had nothing but problems!" Sound familiar? This statement is often heard because the maintenance schedule in your owners manual is written by the same people who are in business to sell new cars.
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Don has studied the automotive industry to a level that he is literally a walking automotive encyclopedia. When people follow his advise they always save thousands of dollars by retaining their vehicles for 20 + years or more! Giannini's Auto is the only repair facility who has discovered an estimated expense of what the average cost to keep a vehicle dependable for 20 years!
At Gianninis Auto Service Inc., we are an AAA certified repair facility who employs ASE Master Certified Techs, who takes the time needed to provide our customers with outstanding quality repairs along with the highest quality parts. We do everything from tire repairs to engine replacements. All of our fluid service are performed with BG products and equipment.
Through Don's diligence he was able properly diagnosis and fixed the issue and I've been a customer ever since. I have changed vehicles throughout the years (old & late models) and Giannini's Auto Service serviced each one. It's not often you find a trust worthy & professional mechanic who does the work right the first time.
The vehicle we "Already Own", over time, are being forced off the road, right under our noses! Remember when you had to sit in line for your emission test to get your car licensed? Did you know that 10 year program removed 70% of the 1995 cars and older off the road? The inconvenience when people didn't pass, that's all it took!
Reviews (10)
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Michael Dowd
Jun 02, 2022
Great customer service! I needed a hitch installed ASAP and missed my original appointment with another mechanic. They had a cancellation and were able to squeeze me in last minute at around 1 pm and return my car the same day. Mrs. Giannini (I didn't catch her name) was wonderful and Don came out of the garage while I was there to introduce himself and walk me through the process. Friendliest mechanics I've ever met. Don followed up with me a few days later to make sure I was satisfied with the work. Price was very reasonable as well. I will definitely return to them for future car work/issues. 10/10 would recommend
Rebakkah Johnson
Mar 08, 2022
Debbie, the front desk attendant, is the most unprofessional staff. For starters she hung up the phone when I politely disagreed with her, saying "she's heard enough." Also, she disrespected my intelligence, telling me "I don't think you understand what I'm telling you" over and over, as if English isn't my native language. I am a doctor. I have had plenty of school.

Do not go here if you have a foreign engineering vehicle. They will spend hours "doing research" on basic knowledge and charge you $100 for their time. My mother tells me horror stories of this place that I should've adhered to, but couldn't, because of their cheap pricing. Not worth it. They left a tool in my car that wouldn't stop making noise. That should be all I have to say towards what type of goofy operation this is.
Kimberly Floyd
Jul 14, 2021
We just moved back to STL from out of state and needed the inspection and emissions testing plus an oil change. I chose Giannini's because of the reviews and it was close to our new location. Very kind and professional staff and there were no pushy sales or telling me what I needed to do. They texted me a few days later to check on my car and sent letters thanking me for my service. I've never had an auto service take that type of time to reach out to me. Lovely people, I will definitely be back!
Maureen Mintzlaff
Jul 06, 2021
We've been using Giannini's Auto Service for years and are so thankful to their team--they really care about their customers and provide great auto service. We have reaped the benefits of their awesome work by being able to keep our vehicles well maintained and dependable even as the years and miles increase. Our 2004 suburban has 302,000 miles on it and it runs great. Thanks so much for the great service you provide!
Neil McCloskey
Jan 24, 2021
Don inspected our car. He squeezed us in the night before a long road trip. He stayed well after hours to make sure we would be taken care of, and we picked up the car later that evening. We actually picked it up before they could pop a new air filter in, so Don drive to my house to finish the job. Never in my life have we had service that great. These folks are really great.
Tom Eagan
Jan 19, 2021
I went to Gianninis for the first time to have my brakes checked. The reception there was warm and friendly. I was given an orientation booklet about preventive maintenance which was helpful. It turned out that my brakes were fine. The charge was nominal, and no unnecessary maintenance was performed. This is the kind of family owned business I was seeking, as they know their reputation depends on being straightforward and not trying to charge for unnecessary work. I will definitely be back!
Debra Lioubinski
Dec 12, 2020
My daughter brought her Volkswagen Passat in because it wouldn't start and the check engine light was on. They had it for a week and a half and still could not diagnose the problem. He said they were looking for an electrical problem. Flushed out the coolant and replaced it with the wrong coolant. Volkswagens take pink as stated in the owners manual.

It started after they found a blown fuse so we had her bring it to our mechanic in Joplin. It took our mechanic less than an hour to figure out what was wrong and they told us it was covered under the Volkswagen extended warranty and we should take it to a Dealership for repair. Volkswagen replaced the heater core at no charge but Giannini's charged my daughter almost $700.00 to replace a fuse and put the wrong coolant in her car.

We paid our mechanic $300 to flush out the incorrect coolant because it could have voided the warranty. Offered her a free loaner car to drive but only after 8 business days and she told him she was taking the car to a different shop. Have no other choice but to file a complaint with the attorney generals office. He has charged other customers with extensive diagnostic charges with no results.
Kevin Graepel
Nov 04, 2020
I have a very unusual schedule that rarely leaves me with enough time to perform regular car maintenance. When I had an unexpected free day, Don and his team worked to get me in quickly. After completing their recommended maintenance, my 10 year old car is running better than ever -- as smoothly and responsively as when I first bought it. I highly recommend their service!
Megan Morrison
Nov 01, 2020
Giannini's is a place of caring and knowledgeable people. As a young women who knows little about cars, I know it can be difficult to find a place that I feel gives me honest feedback and prices - Giannini's was that honest place. I had a leak from my car and brought it in on the snowy day earlier this week. They identified it as a break in the engine oil cooler part - and ordered a part for me.

Given that it was snowing really hard, the place that was delivering the auto part was being flaky and couldn't get it to us. Don - the owner of Giannini's - went out on his sick day off to get the piece in the snow, so I could get it done and Kenny, the mechanic, stayed late to finish up. Truly appreciate all there help! My one piece of feedback would be to have kept me a bit more updated throughout the process of the two days - but I think they were doing the best they could with a shorter staff on a snow day. Thank you, Giannini's! They also honor the AAA discount of 10% off labor and parts up to $50, if you are a AAA member.
Diane H.
May 29, 2020
Gianninis Auto Service significantly reduced the stress of a very challenging car problem during our trip cross country. We hit a piece of concrete in the middle of I-44 in Kirkwood, MO & it cracked the rear differential box. Fortunately, AAA directed us to Gianninis. They were absolutely wonderful! We could have been delayed many days with a repair like this.

After Ken did a very thorough inspection of the car to make sure there wasn't more damage, Don was able to locate a used part from the same year car. He managed to have them deliver it the next morning & before the end of the day, the car was repaired. They even drove us to & from a local hotel while we waited. They took care of us as quickly as possible.

They were very empathetic to our anxiety & did everything possible to make this as easy on us as possible. They followed up with a call several days later to make sure we were happy with the repair. The car drove perfectly for the remaining 1400 miles on our trip home. I can't tell you how much we appreciated their care & expertise. In addition to their excellent work, it is incredibly uplifting to know that there are still businesses in this country that truly know what real customer service is all about. Thank you, thank you, thank you!