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Green Brook Buick GMC of New Jersey

Welcome to Green Brook Buick GMC, the #1 GMC dealer in New Jersey for 2009, 2010, 2011, and 2012! We're a convenient drive for nearby Somerville, Hillsborough, and Westfield Buick and GMC shoppers in Somerville and Hunterdon Counties. Whether you are researching a new vehicle-buy or lease-browsing our certified pre-owned inventory, or looking for a reliable service and parts department, our auto dealership has you covered!

Green Brook Buick GMC was founded on traditional values, and because of our family atmosphere every customer gets treated like a family member. No matter how big the challenge is, we promise to always put you, the customer, first. We offer many different buying and lease options, so come in and test drive the vehicle of your choice- no matter what your transportation needs are, we want you to know that Green Brook Buick GMC has a vehicle to meet those needs.

A New Jersey Buick GMC Dealership Serving Hillsborough, Edison, & Westfield Customers

Because we get so many out-of-town customers, we've made it easy for you to do your research here on our website before making the trip to Green Brook. We proudly serve the entire state of New Jersey, and are always happy to see visitors from Edison, Bridgewater, Somerville, and beyond. Please visit the hours and directions page to plan your trip to our Buick and GMC dealership. If you prefer to contact us via the Internet, we would love to hear from you and process your request. Our new internet sales department is capable of processing your request and exceeding your expectations. Simply email our eCommerce Director, Anthony Alparone, at aalparone@greenbrookauto.com or fill out one of the contact us forms via our website and a certified internet sales consultant will respond quickly and efficiently. We have the technology to communicate via instant message, Skype, email, and telephone, regardless of where you are - NJ and beyond. Connect with us via Facebook or Twitter and receive exclusive money saving coupons and advance notice for all upcoming sales events. We look forward to earning your business and making you part of our family!

Green Brook Auto Repair & Parts Department

Our conveniently located Green Brook auto dealership allows us to serve central New Jersey customers with a huge selection of new and used cars, trucks, and SUVs in New Jersey. Here at Green Brook Buick GMC, our highly qualified staff is ready to assist you with the purchase of a Buick or GMC car, truck, SUV, or crossover. In addition, we offer financing, service, and parts. Come find your used or new GMC or Buick at Green Brook Buick GMC. We happily serve everyone from Bridgewater, Hillsborough, Edison, and other nearby areas.

Close to Many Communities all over New Jersey and Hunterdon County

We have a wonderful selection of new and used cars, trucks and SUVs here at Green Brook Buick GMC, so if you are looking for a pre-owned GMC or Buick car or truck in New Jersey, then you have come to the right place. Check our used inventory right here on the site! Green Brook Buick GMC is the #1 Buick GMC dealer in the state of New Jersey. Need directions from Somerville, Hillsborough, or other communities? Check our map.

Customer reviews

4.8 / 5

Dealer Rating

Our average rating from our customers is

4.8 / 5

Read Reviews

  • LaCrosse Customer reviews

    STEVE SHARKEY IS A GREAT EXAMPLE OF YOUR CARE AND EXCELLENT SERVICE. EXCELLENT EMPLOYEE. HE IS VERY THOROUGH AND MAKES SURE YOU ARE SATISFIED YOUR PROBLEM IS SOLVED TO YOUR SATISFACTION.

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    2011 Buick LaCrosse
  • Acadia Customer reviews

    Good customer service.

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    2012 GMC Acadia
  • Terrain Customer reviews

    My family and I have bought our last four cars over the past 15 years from this dealership. Great people with whom to do business -- want you to be very happy with your car and doing business with

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    2012 GMC Terrain
  • Acadia Customer reviews

    Jim Sheehan went above and beyond to help me through the process.His performance as a member of the Geenbrook team has my vote for most valuable player. Great job,Thanks!

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    2014 GMC Acadia
  • LaCrosse Customer reviews

    Juan at Greenbrook Buick was very polite & friendly when we entered the showroom. He showed me the various makes & models outside in the parking lot. We signed a lease agreement within three hours of

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    2014 Buick LaCrosse
  • Enclave Customer reviews

    Routine oil change and tire rotation with recall notice. No drama and very pleased with dealer service.

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    2013 Buick Enclave
  • Envoy Customer reviews

    Service was courteous and professional. Clearly communicated what repairs were necessary and discussed various options.

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  • LaCrosse Customer reviews

    service was done properly and promptly. As usual I am satisfied with my Buicks (This is my third)and the dealers service.

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    2011 Buick LaCrosse
  • LaCrosse Customer reviews

    service was quick, efficient andhighly professional.

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    2012 Buick LaCrosse
  • Encore Customer reviews

    Quick service and explained the services performed. Love the convenience of the online appt option.

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    2014 Buick Encore