GMC Auto Repair Shop in Hartford County

Shape Effect | M&M Auto Group

Service and Repair of GMC Vehicles

At M&M Auto Group in Simsbury & Weatogue, CT, we're passionate about servicing GMC vehicles. GMC is an American division of General Motors (GM) that primarily focuses on trucks and utility vehicles. GMC is a name you trust, and strength and reliability are just two of the reasons why you chose a GMC automobile. But even the most reliable of vehicles need service from time to time. Your life depends on the hard work your vehicle does; and when your GMC needs service, you need the help of a mechanic you can trust. Whether your GMC is an SUV, a truck, a van, or a utility vehicle, our shop offers you the best GMC service and maintenance in the area.

Our certified technicians understand the value of a hardworking automobile. We offer thorough, quality service that gets your vehicle back to work as quickly as possible. Unlike some shops, we don’t just focus on the mechanical aspects of service.

From the moment you walk through our door until you drive away satisfied, we offer top notch care for customers as well as their vehicles. Our mechanics are happy to share their expertise by answering any of your questions, and we strive to offer a superior customer experience. Whether you need routine maintenance or major repairs, we stand ready to offer the best GMC care to you and your vehicle.

Call the mechanics you trust to service the brand you trust. Call or stop in to schedule an appointment and give your GMC the service it deserves.

Rely on the Word of Others

Trusted by your neighbors for honest repairs

Reviews Stars Rating | M&M Auto Group

5-star Review by Rebecca Goberman

"M and M Auto is friendly, professional and thorough. We have been going to them for years for everything from routine maintenance to repairs after an accident.  They don't do major body work but do all other services. It is easy to get appointments within a reasonable time frame.  Digitally sent, detailed receipts and estimates make it easy to keep track of your car's maintenance history."

Reviews Stars Rating | M&M Auto Group

5-star Review by Daniel Roth

"My family has been going to M & M Tire & Auto for 15 years! Jason has always been very professional and courteous. Bill the owner is a good judge of character and it shows in his employees. I’d highly recommend this shop for any service needs. They’ve done it all for me. Lift kit on my Jeep, transmission in my Jetta! They fix everything!"

GMC Repair Nearby

Expert GMC Repair and Maintenance in Simsbury & Weatogue, CT

M&M Auto Group proudly serves drivers in Simsbury and Weatogue, CT, as well as throughout Hartford County and the Greater Hartford / Capitol Region of Connecticut. Conveniently located in Farmington Valley, our facilities offer easy access for commuters, families, and local businesses seeking dependable auto repair and maintenance services. Whether traveling for work or navigating nearby roadways, our locations are centrally positioned to efficiently serve surrounding communities.


Since 2008, M&M Auto Group has supported drivers across Simsbury, Weatogue, and the surrounding Hartford County area with consistent, professional automotive care. With ASE-certified technicians, AAA affiliation, and service backed by the NAPA 24-month/24,000-mile Nationwide Warranty, customers throughout the Greater Hartford region rely on us for dependable workmanship and long-term reliability. Operating in both communities allows us to provide added convenience while maintaining the same trusted standards at each location.

Areas of Service:

  • Avon
  • Canton
  • Granby
  • East Granby
  • Bloomfield
  • Windsor
  • Windsor Locks
  • West Hartford
  • Farmington
  • Burlington
  • New Hartford
  • Hartford
  • East Hartford
  • South Windsor
  • Enfield
  • Suffield