Sales: 732-752-3000    Service and Parts: 732-752-3000

Specials

  • 2014 Buick Encore FWD
    2014 Encore Lease Offer*
    2014 Buick Encore FWD
    *Disclosure Current Owners and Lessees of 1999 or newer non-GM vehicles 2014 BUICK Encore 1SB Ultra Low-Mileage Lease for Qualified Lessees $199/month for 39 months. $4,269 due at signing (after all offers). $3,769 due at signing for current Non-GM Owners and Lessees (after all offers). Tax, title, license, dealer fees and optional equipment extra. Mileage charge of $0.25/mile over 32,500 miles. Expires expires on 09/02/2014 View Inventory
  • 2014 Buick Regal Premium I FWD
    2014 Regal Lease Offer*
    2014 Buick Regal Premium I FWD
    *Disclosure Current Owners and Lessees of 1999 or newer non-GM vehicles 2014 BUICK Regal Premium I Group Ultra Low-Mileage Lease for Qualified Lessees $259/month for 39 months. $3,229 due at signing (after all offers). $2,229 due at signing for current Non-GM Owners and Lessees (after all offers). Tax, title, license, dealer fees and optional equipment extra. Mileage charge of $0.25/mile over 32,500 miles. Expires expires on 09/02/2014 View Inventory
  • 2014 Buick Verano 4dr Sdn
    2014 Verano Lease Offer*
    2014 Buick Verano 4dr Sdn
    *Disclosure Current Owners and Lessees of 1999 or newer non-GM vehicles 2014 BUICK Verano 1SD Ultra Low-Mileage Lease for Qualified Lessees $199/month for 39 months. $2,949 due at signing (after all offers). $2,449 due at signing for current Non-GM Owners and Lessees (after all offers). Tax, title, license, dealer fees and optional equipment extra. Mileage charge of $0.25/mile over 32,500 miles. Expires expires on 09/02/2014 View Inventory
  • 2014 GMC Acadia FWD 4dr SLE1
    2014 Acadia Lease Offer*
    2014 GMC Acadia FWD 4dr SLE1
    *Disclosure 2014 GMC ACADIA GMC National Lease Offer 2014 GMC Acadia SLE-1 Ultra Low-Mileage Lease for Qualified Lessees $299/month for 39 months. $2,159 due at signing (after all offers). Tax, title, license, dealer fees and optional equipment extra. Mileage charge of $0.25 /mile over 32,500 miles Expires expires on 09/02/2014 Stock Number: EJ295925 View Details
  • 2014 GMC Terrain FWD SLE-1
    2014 Terrain Lease Offer*
    2014 GMC Terrain FWD SLE-1
    *Disclosure GMC National Lease Offer 2014 GMC Terrain SLE-1 Ultra Low-Mileage Lease for Qualified Lessees $199/month for 24 months. $2,869 due at signing (after all offers). Tax, title, license, dealer fees and optional equipment extra. Mileage charge of $0.25 /mile over 20,000 miles. Expires expires on 09/02/2014 View Inventory

Vehicles

Map and Directions

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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, 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

  • Acadia Customer reviews

    After taking my car to two different GMC service centers and having horrible experiences, I scheduled an appointment with Greenbrook. Everyone I encountered was professional. Greenbook diagnosed and

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    2010 GMC Acadia
  • Regal Customer reviews

    Everyone is no hassle, very friendly, willing to direct us, very knowledgeable.

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    2012 Buick Regal
  • Sierra 1500 Customer reviews

    My vehicle was serviced at Green Brook GMC. My appointment time was honored and service was performed in a timely manner. Service personal were professional and courteous. Price for service was at mar

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    2009 GMC Sierra 1500
  • Terrain Customer reviews

    Excellent customer service. My oil change was completed within the time that was quoted?I love this dealership

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    2012 GMC Terrain
  • LaCrosse Customer reviews

    I brought my car in to the dealer for an oil change and tire rotation, plus a recall repair. I was helped immediately and pleasantly. I was told the work would take about 1-1/2 hours. I was direct

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    2014 Buick LaCrosse
  • Acadia Customer reviews

    Ut was perfect as always. Never an issue dealing with this team.

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    2014 GMC Acadia
  • Terrain Customer reviews

    Appointment was easy to schedule online. Confirmation of time was quick. Service was done in a very timely manner. I'm always made aware of upcoming service issues I may need to address and of current

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    2013 GMC Terrain
  • Sierra 1500 Customer reviews

    Everything was great.

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    2013 GMC Sierra 1500
  • Terrain Customer reviews

    Ernie was wonderful! He made the whole experience easy and fun!

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    2014 GMC Terrain
  • Acadia Customer reviews

    the vehicle service technician accommodated me by fitting my vehicle repair into the day's busy schedule, even though I didn't an appointment. And, he kept me very well informed as to the progress of

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    2012 GMC Acadia