The Best GMC Repair in Dunbarton, NH

Compare the highest-rated gmc repair mechanics in Dunbarton, New Hampshire. All shops are licensed, insured, and verified through our rigorous screening process.

#1

D & D Automotive & Transmission

4.8
(180 reviews)
Verified

A family-owned and operated business renowned for its expertise in complex transmission and diesel engine repairs. They are a local leader in servicing Allison transmissions and Duramax engines, with a reputation for tackling jobs other shops turn away. Their technicians have deep, hands-on experience with heavy-duty GM trucks and their sophisticated 4WD and towing systems.

127 Manchester St, Concord, NH 03301

Specialties & Features

Allison transmission repair
Duramax diesel service
4WD system diagnostics

Business Information

Years in Business:25 years
Licensed:Yes
Insured:Yes
#2

AutoServ Tilton

4.4
(250 reviews)
Verified

While part of a larger regional chain, AutoServ's Tilton location has a long-standing local presence and is a certified service center for GM vehicles. They offer a factory-trained technician team, genuine GM parts, and state-of-the-art diagnostic equipment. This makes them a strong choice for complex electronics, Denali luxury feature repairs, and EcoTec engine diagnostics, backed by national warranty support.

156 Laconia Rd, Tilton, NH 03276

Specialties & Features

EcoTec engine diagnostics
Denali electronics
factory towing package maintenance

Business Information

Years in Business:30 years
Licensed:Yes
Insured:Yes
#3

Pete's Auto & Truck Repair

4.7
(90 reviews)
Verified

A highly respected independent shop known for its honest diagnostics and high-quality workmanship on both light and heavy-duty trucks. Pete's has built a loyal customer base by specializing in the mechanical systems most critical to GMC owners, including suspension work for heavy-duty models and comprehensive diesel service. They are a go-to for pragmatic, reliable repairs.

222 Sheep Davis Rd, Pembroke, NH 03275

Specialties & Features

Heavy-duty truck suspension
Duramax service
general mechanical repair

Business Information

Years in Business:15 years
Licensed:Yes
Insured:Yes

Why These Are the Top GMC Repair Auto Repair Shops in Dunbarton

** The GMC repair market for Dunbarton residents is characterized by a reliance on reputable shops in neighboring, more populous towns like Concord, Tilton, and Pembroke. There are no dedicated GMC-only dealerships or specialists operating directly within Dunbarton's small commercial zone. The competition is moderate but of generally high quality, with a clear divide between independent specialists (like D & D and Pete's) and certified dealership-affiliated service centers (like AutoServ). * **Average Quality:** The average quality of GMC-specific service in the area is high. The shops that have maintained a strong reputation are those with significant longevity and specialized expertise, particularly in diesel and transmission systems. * **Competition Level:** Competition is healthy but not saturated. Shops compete on reputation and specialized skill sets rather than price alone. Customers seeking Duramax or Allison work have 1-2 top-tier options, which keeps standards high. * **Typical Pricing:** Pricing is in line with New England regional averages. Independent specialists like D & D and Pete's may offer slightly lower labor rates than the dealership-affiliated AutoServ, but parts and diagnostic costs are generally comparable for complex jobs. Expect premium pricing for specialized diesel and transmission work, reflecting the required expertise and equipment.

High Ratings

4.7+ star average from verified customer reviews

Fully Licensed

All shops are properly licensed and insured

Proven Experience

10+ years average experience in the industry

Local Experts

Familiar with Dunbarton regulations and climate