O'Fallon Buick GMC

I came in for a simple oil change and left with two new vehicles—talk about unexpected! While waiting, I struck up a conversation with Justin from sales. I was just curious to check out the inside of a spe vehicles—talk about unexpected! While waiting, I struck up a conversation with Justin from sales. I was just curious to check out the inside of a specific vehicle, but the battery was dead. Justin didn’t miss a beat—he got everything sorted quickly, and the next thing I knew, we were running numbers. I gave him my bottom-line figures—what I needed for the deal to even be possible. Honestly, I didn’t expect them to come anywhere close. But to my surprise, they made it happen exactly how I needed it to work. I even traded in the car that was in for the oil change! Justin and the team were incredibly easy to work with—no pressure, no games, just solid communication and follow-through. If you’re looking for a dealership that actually listens and makes the numbers work, this is the place. Highly recommend! More

First time going to O’Fallon Buick and it was a great experience. Very professional and excellent service. experience. Very professional and excellent service. More

We recently had the pleasure of purchasing a vehicle from O’Fallon Buick GMC, and the experience exceeded our expectations. From start to finish, the team went above and beyond to ensure a smooth and stress- O’Fallon Buick GMC, and the experience exceeded our expectations. From start to finish, the team went above and beyond to ensure a smooth and stress-free process. Our sales representative, Blake, was fantastic—he answered every question we had with patience and thorough knowledge, making sure we felt confident in our decision. The sales manager, Dariel, was upfront and honest, giving us a fair trade-in value without the usual back-and-forth games. And when it came time for financing, Jarrod made the process seamless, explaining everything clearly and ensuring the paperwork was handled efficiently. The professionalism, honesty, and customer service at O’Fallon Buick GMC were truly exceptional. If you’re in the market for a new vehicle, I highly recommend giving them a visit. You won’t be disappointed! More

Very professional and trustworthy dealership with hardworking and determined dealers, who do whatever they can to get you the deal you want. hardworking and determined dealers, who do whatever they can to get you the deal you want. More

Paul was excellent and super accomodating and helpful. I'd also like to highlight how smoothly things when with Michael in finance. This is the second transaction I'ave had with O'Fallon Buick/GMC and bot I'd also like to highlight how smoothly things when with Michael in finance. This is the second transaction I'ave had with O'Fallon Buick/GMC and both experiences were flawless and keep me coming back. More

I recently had the pleasure of working with Devan at O’Fallon Buick GMC while purchasing my new 2025 GMC truck, and I can't say enough about how outstanding my experience was! From the moment I walked i O’Fallon Buick GMC while purchasing my new 2025 GMC truck, and I can't say enough about how outstanding my experience was! From the moment I walked into the dealership, Devan was approachable, knowledgeable, and genuinely invested in helping me find the perfect vehicle. He took the time to understand my needs, answered all my questions, and provided insightful recommendations based on my preferences. Devan extensive knowledge of the various models and features was incredibly helpful and made the decision-making process much easier. What truly stood out was their commitment to ensuring I was completely satisfied with my purchase. Devan went above and beyond, providing a seamless and enjoyable buying experience. I drove away feeling confident in my choice and excited about my new truck! I highly recommend Devan to anyone looking for a new vehicle. Thank you for making this a wonderful experience! More

Beau gave me exceptional service in the process of buying my car. Will be suggesting him for all of my friends looking for a car my car. Will be suggesting him for all of my friends looking for a car More

The Service Department is the best! ! Don, Nik and Joe always greet me when I arrive. The service is performed quickly and efficiently!! ! Don, Nik and Joe always greet me when I arrive. The service is performed quickly and efficiently!! More

The Service Department is important in that it makes or breaks the dealership. I have been taking our cars to O’Fallon Buick GMC for quite some time. Don, Nik and Joe are very friendly and they explain th breaks the dealership. I have been taking our cars to O’Fallon Buick GMC for quite some time. Don, Nik and Joe are very friendly and they explain the service your vehicle needs and the cost for the repair. Because of them, my wife and I decided that we would purchase a new Terrain Denali from the dealership. In the sales department Walter Washington served us and did a great job. More

It was awesome and friendly. I would recommend everyone go there for their cars and service!! I would recommend everyone go there for their cars and service!! More