New and used 2026 GMC Sierra 2500 trucks for sale near Groton Long Point, CT

An amazing experience with the service department and collision center at this dealership after my car was damaged by a fallen tree. The process right from the beginning was flawless. Getting the car to the dealership, getting the rental car, the time it took to get the parts and do the repairs was quicker than expected. The ease and efficiency of the repairs and the quality and timeliness makes Gates GMC. Jamie Laskow and his team get 4 stars from me! I will definitely recommend your dealership in the future.

I had routine maintenance done on my Encore. The service as usual was excellent. Very friendly and professional service staff. They are a pleasure to work with.

I recently had an outstanding experience purchasing my 2024 GMC Sierra AT4 at Gates GMC in Windham, CT. From start to finish, the team at Gates exhibited clear communication and professionalism, making the process seamless and stress-free. What stood out the most was the transparency and honesty in every interaction, with no hidden agendas or surprises. I felt valued and understood, and they made sure all my questions were answered. I highly recommend Gates GMC for anyone looking for a reliable and customer-focused dealership. Thank you for an exceptional experience!

A quality dealership in all respects. Knowledgable personel in sales, finance, parts and service. We?ve been dealing with this dealership for nearly a decade since moving to RI. We have either purchased or traded in several vehicles with the promised hassle free process. Our vehicles are always serviced/repaired right the first time at a reasonable cost.

I appreciate the prompt and excellent service that was provided at Paul Masse Buick GMC South. Special thanks to Peter from the service department who worked hard to assure that all of the issues with my wife's pickup truck were resolved. Thanks to Paul and the great team he has assembled.

Two and a half years later our salesman, tom frat, is still going above and beyond for us!! He arranged a service for my truck, got me an appointment and the truck fixed in no time. This man is a true people person and knows customer service like the back of his hand. Tom needs to be recognized for his ability to ALWAYS TAKE OF THE CUSTOMER FIRST!

Service tech was very helpful in ensuring the service due was completed and provided, based on the mileage, recommendations for my next appointment. Overall a great experience.

It?s a pleasure buying experience. The sell consultant and the dealer are all friendly, helpful and considerate. The shopping environment is clean. According to the introduction, the after-service is good (because I just buy a new car).

Mark M is hands down the best service advisor. Takes care of me every time. Upfront with cost impact and time impact. Service is top notch, definitely what you pay for.

I've always been provided the best service by knowledgeable technicians and the service writer, Mark Minor, strives to address any issues and will work with the customer to make sure the matter is resolved.