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O'Fallon Buick GMC
O'Fallon, MO
1,321 Reviews
We at O'Fallon Buick GMC are so excited to be joining the O'Fallon community!
While our roots are in our hometown of Greenville, SC, with many years of experience and three generations working within our family business, we knew that it was time to expand. In January of 2019, we had an opportunity to travel to O'Fallon, MO and the surrounding areas and instantly knew that we wanted to join the O'Fallon community.
As a family business, we are most interested in ensuring that each and every customer has an excellent experience and always feels welcome in our state-of-the-art, family-friendly atmosphere. The satisfaction of our customers and employees always comes first, with value and integrity at the forefront of every interaction.
A visit to O'Fallon Buick GMC is not just a trip to the dealership, it's an experience. Whether you buy with us or not, we want to get to know you, taking our time to discuss your interests and hobbies, lifestyle, budget and aesthetic preferences to make certain that you make the best investment for you and your family.
We proudly offer a wide-range of new cars, notably new Buick and GMC inventory along with pre-owned cars, trucks, SUVs and crossovers. We also have a highly trained auto-repair and service department which will help you to keep your investment performing at its best.
O'Fallon Buick GMC is also dedicated to contributing to the O'Fallon community. We know that it is the support of the O'Fallon community that will be the key to our success, and we are committed to finding as many ways as possible to give back.
With great excitement, the entire staff at O'Fallon Buick GMC looks forward to serving you! Visit us today!
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This rating includes all dealership reviews, with more weight given to recent reviews.
Sales Price Transparency
Service Price Transparency
Trade-in Experience
Purchase Time
Finance Experience
Workmanship
Service Time
Service Communication
Hours
Sales/Showroom
Monday 9:00 AM - 8:00 PM
Tuesday 9:00 AM - 6:00 PM
Wednesday 9:00 AM - 8:00 PM
Thursday 9:00 AM - 6:00 PM
Friday 9:00 AM - 8:00 PM
Saturday 9:00 AM - 6:00 PM
Sunday Closed
Service
Monday 7:00 AM - 6:00 PM
Tuesday 7:00 AM - 6:00 PM
Wednesday 7:00 AM - 6:00 PM
Thursday 7:00 AM - 6:00 PM
Friday 7:00 AM - 6:00 PM
Saturday 7:00 AM - 1:00 PM
Sunday Closed
Parts
Monday 7:00 AM - 6:00 PM
Tuesday 7:00 AM - 6:00 PM
Wednesday 7:00 AM - 6:00 PM
Thursday 7:00 AM - 6:00 PM
Friday 7:00 AM - 6:00 PM
Saturday 7:00 AM - 1:00 PM
Sunday Closed
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Showing 1,321 reviews
June 02, 2025
O’Fallon Buick GMC was great at getting me the car I wanted. Having been in once and having worked with Devan, I was most comfortable calling him when I saw the vehicle I liked pop into the inventory o wanted. Having been in once and having worked with Devan, I was most comfortable calling him when I saw the vehicle I liked pop into the inventory on-line. I made a quick call to Devan and he had it waiting for me upon arrival 30 minutes later. He shared all the pertinent details, we drove it, and the deal was done. Great experience! More
by deb_yerkes
Verified CustomerEmployees Worked With
June 01, 2025
This dealership is the best out there! They treat you like family and will not do you wrong. Thanks to my salesman Beau and Dariel I got my dream car! I would recommended anyone to go to t They treat you like family and will not do you wrong. Thanks to my salesman Beau and Dariel I got my dream car! I would recommended anyone to go to this dealership!! More
by Payden London
June 01, 2025
Zach was awesome! Made the experience very easy! Had my dream truck the same day I came in! Made the experience very easy! Had my dream truck the same day I came in! More
by lwalker13
Employees Worked With
June 01, 2025
I've been buying new cars for many, many years and would definitely return to purchase more vehicles from O'Fallon GMC. Zach was professional and reasonable (that's a good thing from the customer perspectiv definitely return to purchase more vehicles from O'Fallon GMC. Zach was professional and reasonable (that's a good thing from the customer perspective) during trade-in and sale process! Zach ensured the process wasn't overly time consuming and got me out the door quickly - Thank You! More
by O'Fallon GMC Customer
Employees Worked With
June 01, 2025
Everyone was business friendly just didn’t go the extra smile to receive 5 stars. I would recommend if asked. smile to receive 5 stars. I would recommend if asked. More
by pbeese15
June 01, 2025
This dealership cares about their customers. From service to sales they make sure the customer is happy. From service to sales they make sure the customer is happy. More
by connorstm
May 31, 2025
Christy Thornton and Mark Thornton are amazing to work with. The process was fast and easy. Did the credit app before going to the dealership and was in and out in about an hour. Way better than the 4 or with. The process was fast and easy. Did the credit app before going to the dealership and was in and out in about an hour. Way better than the 4 or more hours at other dealerships. More
by MICHAELPRATT34
May 31, 2025
Was in the area and decided to drive through the lot and happened upon a very nice man named Zach. He was very patient and realized that I wasn’t quite ready to buy a new car, but I was amazed at all the in happened upon a very nice man named Zach. He was very patient and realized that I wasn’t quite ready to buy a new car, but I was amazed at all the information that he was able to provide and how he made the conversation very comfortable. I’ll definitely be looking up Zach in the near future when I’m ready to buy. I’ve already recommended him to a couple of my family members and coworkers and hopefully they’ll buy a car from him. More
by Dawn
Employees Worked With
May 31, 2025
Zach Dingley was very knowledgeable and so easy to work with would definitely buy from him again with would definitely buy from him again More
by vrsmittyrcsmitty23@gmail.com
Employees Worked With
May 30, 2025
This was one of the easiest vehicle buying experiences we have ever had, Christy was great! have ever had, Christy was great! More
by connorstm
