New and used 2026 GMC Sierra 1500 trucks for sale near North Westport, MA

Michael Gentilucci was very kind, courteous, and professional. I inquired about remote start on my 2019 GMC Canyon and he was very knowledgeable on the process of installing it on my truck. He ordered the part and I can't wait to have it installed. I originally just went there for an oil change, but service was so great I decided to let them install the remote start as well, rather than my local GMC dealership. The kind and courteous service is worth the extra few miles to drive.

Courteous & Professional throughout my purchase. Looking to purchase, ask for Sayed, you won’t go wrong!

I had a problem with the radio settings (would not stay at my settings) and groaning rear brake noise on my new 2021 GMC Sierra. I took it back to the dealer where I bought the truck and they did nothing and basically told me to "live with it". Wendell Jordan (service advisor ) for this dealership solved the problem with the rear brakes (had rust in them) and replaced the radio module which so far has kept the volume and sound settings. I would highly recommend Chevrolet Buick GMC of Attleboro for their service because they care, especially Wendell Jordan!

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.

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.

as usual the service is amazing. I have used the same dealership for years

Best car buying experience I’ve had so far! Derek was awesome!!! I would definitely buy from Mastria again!

I bought a hard-to-find truck remotely. Joel Picchi made the sale easy, answering all my questions, and helping navigate the challenges of an out-of state purchase. It ended up being one of the smoothest purchases ever! Thanks to the team for getting this awesome vehicle delivered to my home in central Maine!

Incredible customer focus. Had an issue with my 2020 Silverado. Had to drive from Wareham to Marlborough so I pulled in to Robertson GMC, never once believing that I would be able to continue. Within an hour they had it diagnosed and the part shipped for next day delivery. I was thrilled but was totally surprised when they offered me a rental to continue with my trip. They called the next morning and the truck was repaired by 10:00. I returned to pick it up and they had even washed and vacuumed it. Incredible customer support, especially the Service Advisor, Jim Morrill. What a pleasure it was dealing with Robertson GMC!

Courteous service and a capable repair staff. Even an around town vehicle if you are waiting.

Every department at Robertsons has knowledgeable employees that are extremely friendly and helpful. I have purchased multiple cars there and the process has been all around easy because of the employees. And the service department always gives updates if needed and has your vehicle done at the promised times