Sullivan's O'Neill's Chevrolet Buick
Sales: (844) 315-0960 | Service: (860) 269-3396 | Commercial: (877) 235-0615


Customer reviews

4.7 / 5

Dealer Rating

Our average rating from our customers is

4.7 / 5

Read Reviews

  • Lucerne Customer reviews

    Everything was taken care of... per Ray's information provided and it was ready in a timely fashion


  • Avalanche Customer reviews

    Lengthy process to determine that pistons and rings with new covers would be neded to solve excessive oil consumption problem but the service department walked me through the process and the outcome c


  • Malibu Customer reviews

    Service consultant Ray Pellitier listened to my problem with every bit of being concerned, and handled it as if it were his personal problem, as things turned out every thing worked out OK. Thanks Ray


    2013 Chevrolet Malibu
  • Malibu Customer reviews

    The service manager was most helpful in explaining the work that was done.


    2012 Chevrolet Malibu
  • Corvette Customer reviews

    Great service, friendly and showed genuine concern for my satisfaction


    2005 Chevrolet Corvette
  • Tahoe Customer reviews

    A few words


    2014 Chevrolet Tahoe
  • Equinox Customer reviews

    Excellent, timely and professional service is always extended to me on service visits. My service advisor, Ray, is friendly and professional. And, the new waiting area is done nice and comfortable.


    2012 Chevrolet Equinox
  • Cruze Customer reviews

    Very pleased with my car service at O'Neills. Ray, service consultant is very pleasant, business friendly, thorough and works with you which is important to me being the customer. I am happy with Cor


    2013 Chevrolet Cruze
  • LaCrosse Customer reviews

    Defective battery resulted in numerous damage from leaking acid. Due to delivery of replacement parts the car was in the shop for two days. A rental car was immediately provided and the service was co


    2012 Buick LaCrosse
  • Impala Customer reviews

    Couldn't be better!


    2009 Chevrolet Impala

Welcome to Sullivan's O'Neills Chevrolet Buick near Hartford, CT!

Thank you for visiting Sullivan's O'Neills Chevrolet Buick online! We specialize in selling new and used cars, Buick and Chevrolet service, local vehicle repair, and automotive financing. Our dealership has a large selection of cars, trucks, SUVs, and vans at great prices that can’t be beat! Our website is a great resource to check out our inventory, parts, specials and financing options before coming in to our dealership. We are conveniently located near Hartford, CT, and invite customers from throughout the surrounding area to come by any time and take a test-drive.

New Chevrolets, Buicks and Used Cars in Avon, CT

If you’re searching for a new Chevrolet or Buick model in Avon, CT, Sullivan's O'Neills Chevrolet Buick is the first and only place you need to look. We always want our customers to leave happy, so we make sure to keep our inventory stocked with crowd-favorites like the Enclave, LaCrosse, Verano, Cruze, Impala, Silverado, Tahoe and Volt, which you can view in our New Vehicle Inventory. Plus, if you know exactly what you’re looking for, you can refine your search by year, make, model, trim, price or color. We also offer our customers a wide selection of used cars from a variety of manufacturers. These vehicles are a great option for drivers shopping on budget to get all the features they’re looking for at a fraction of the cost. Browse our extensive Used Inventory, and be sure to check out our specials, too, for savings on all of our models.

Parts and Service Departments

The Service Department at Sullivan's O'Neills Chevrolet Buick is one of the most reliable in the area. Should your vehicle need routine maintenance or more serious repairs, just bring it in to us! We’ll restore your vehicle to like-new condition in the timeliest manner possible. Customers from Avon, Hartford, Torrington and Bristol bring us their cars and trust us for consistent care, accurate diagnostics and reasonable prices. The Sullivan's O'Neills Chevrolet Buick service staff is made up of highly trained, technicians, so you can rest assured knowing that your vehicle is in capable hands. Additionally, our technicians use OEM parts from our Parts Department to repair your vehicle and keep it running to the manufacturer’s standards. Getting your car repaired or serviced has never been easier! You can schedule an appointment, order parts or browse our specials online.

Finance Department

Whether your credit is good or bad, our Finance Department is here to help you work through any situation. Our friendly financial officers are committed to getting our customers back on the road and back into good standing. We also offer competitive rates on leases and loans, in addition to the best prices on new and used vehicles. Get pre-approved today! At Sullivan's O'Neills Chevrolet Buick, you’ll enjoy a hassle-free shopping experience unlike any other! As your premier Chevrolet and Buick dealer, we happily serve the Hartford area by offering service with a smile. Simply give us a chance to earn your business, and you’ll experience the Sullivan O’Neill’s difference for yourself. Thanks again for visiting our website, and we hope you find everything you need. If you have further questions or comments, please feel free to contact us directly or visit us at 5 West Main St., Avon, CT 06001. We look forward to seeing all of our customers from Avon, Hartford, Torrington and Bristol here soon!


Service | Parts Order Form | GM Accessories

Chevrolet: CamaroCruze | Equinox | Express Passenger | Impala | Malibu
Silverado 1500 | Silverado 2500HD | Sonic | Spark | Suburban | Tahoe | Traverse | Volt
Buick: Enclave | Encore | LaCrosse | Regal | Verano