
O'Fallon Buick GMC
O'Fallon, MO
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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Walter was fantastic! He was patient and willing to work with us to make a good deal. I also felt no pressure from him or anyone else during the entire process, which sets He was patient and willing to work with us to make a good deal. I also felt no pressure from him or anyone else during the entire process, which sets this dealer apart from others. More
Beau and the rest of the team was great. Very patient and understanding. My mom really enjoyed her experience. Very patient and understanding. My mom really enjoyed her experience. More
Very quick service and very clean waiting area. I would highly recommend their service department. I would highly recommend their service department. More
No high pressure, sales person was easy to work with, didn’t have to spend hours to reach a deal. didn’t have to spend hours to reach a deal. More
Don’t do right by the customer. Saying they are trying to get assistance but never do Saying they are trying to get assistance but never do More
Christy and Mark are the best! Never would go anywhere else! Thank you for pressing the easy button for us! Never would go anywhere else! Thank you for pressing the easy button for us! More
I am greeted by the nicest employees and the service is the best! Thank you the best! Thank you More
Paul was exceptionally energetic and helpful in the whole process. He communicated clearly, and led us to the vehicle we purchased. Outstanding Customer Service, with extra patience. Zach too, was profess process. He communicated clearly, and led us to the vehicle we purchased. Outstanding Customer Service, with extra patience. Zach too, was professional and patient to explain warranty and receipting us. Walter too, was courteous and helpful, to fill the gap while others were finishing with other customers. Our overall experience with the whole staff was outstanding. More
I have been using O’Fallon GMC to service my 2023 GMC Acadia, 2016 Chevy Silverado and 2006 Chevy SSR, for a couple years now, always friendly professional service, done in a timely manner. Acadia, 2016 Chevy Silverado and 2006 Chevy SSR, for a couple years now, always friendly professional service, done in a timely manner. More
Devan was great. Honest and knowledgable. The finance department made the purchase go smoothly. Was pleased and not pressured. Honest and knowledgable. The finance department made the purchase go smoothly. Was pleased and not pressured. More