Lafontaine Buick Gmc St. Clair

2026 Buick Envision Preferred

2026 Buick Envista Sport Touring

2026 GMC Sierra 1500 Elevation

2026 GMC Sierra 1500 SLT

2026 GMC Terrain AT4

2026 GMC Terrain Elevation

Matthew Kejbo

I recently brought my Hummer  EV to LaFontaine Buick GMC, and I was thoroughly impressed with how quickly they resolved an issue. Their certified technicians worked efficiently, ensuring I experienced no downtime during my visit. From the moment I reached out, the coordination between my service advisor and sales rep was fantastic. My sales rep even took the time to FaceTime me to troubleshoot the issue, which showed true commitment to customer service. When it became clear I needed to bring the car in for service, he met me in the service department and ensured everything was taken care of seamlessly. I greatly appreciated their knowledge of EVs, especially with the Hummer being a new addition to the market. LaFontaine truly crushed it with this vehicle! Additionally, their ability to source a wide range of vehicles, coupled with the sales rep’s willingness to collaborate with the finance manager, has convinced me—a usually independent, own multi-vehicle.. shopper—to become a long-term customer. Couldn't ask for a better experience; it was absolutely worth it!

Aaron Johnson

My car had broken down and I got a hold of Blake Symon. He was so eager to help that he drove out of his way to come and get me to the dealership. He was amazing throughout the process and made it seamless and easy to purchase my new Buick. I could not be more pleased with how it went. 10/10 will be back for my next car purchase!

Michael Kulig

I had an outstanding experience working with John Shell and Nick Castiglione. From start to finish, they went above and beyond to make the entire process incredibly easy, smooth, and stress free. The vehicle was delivered right to my home for a test drive, my trade in was picked up without any inconvenience, and all of the paperwork was completed electronically. Every detail was handled seamlessly, saving me so much time and effort.

What really stood out was their professionalism, communication, and commitment to delivering exactly what they promised. No surprises, no pressure, just excellent service. This was by far the easiest and most enjoyable car buying experience I’ve ever had. I would 100% recommend John and Nick to anyone looking for a top tier, hassle-free experience, and I wouldn’t hesitate to work with them again in the future.

Justine Van Assche

I had an amazing experience purchasing my truck with the help of Steve V. and Brian Leen. They truly went above and beyond to help me find the right vehicle that works for both me and my business. As someone who doesn’t know much about vehicles, buying a used truck at a dealership can be intimidating—but they made the entire process feel comfortable and stress-free. They took the time to explain everything clearly from start to finish and never made me feel rushed or pressured. They were also incredibly mindful of my finances and worked hard to help get the vehicle I wanted into monthly payments I could realistically afford. I’m extremely grateful for their patience, honesty, and dedication, and I would highly recommend working with them to anyone looking for a vehicle.

Catherine Plichta

I’ve been looking for a certified pre-owned Cadillac XT-4 for over a year. Most I’d found were FWD and I was determined to have AWD plus navigation, and extras. Well on 12/23 I was sitting in my husband’s hospital room (horrible month of December) and an email popped up from LaFontaine GMC St Clair. I decided to go to their website, again as I had at last 4 other dealerships. There it was! Patrick Quade was my salesperson and everything went smoothly! Hubby got a smooth ride home from the hospital on 12/31!

Lafontaine Buick Gmc St. Clair

Found 7 cars for Lafontaine Buick Gmc St. Clair

Make

Mileage & Year

Price & Payment

Deal Rating

Body Type

Exterior Color

Interior Color

Fuel

Drivetrain

Features

Cylinders