The Best GMC Repair in Middle Haddam, CT

Compare the highest-rated gmc repair mechanics in Middle Haddam, Connecticut. All shops are licensed, insured, and verified through our rigorous screening process.

#1

C & M Auto Service

4.8
(180 reviews)
Verified

A family-owned and operated auto repair shop with a stellar reputation for honesty and technical expertise. While not an exclusive GMC dealer, they are widely recognized in the local community as the go-to specialists for complex diagnostics and repair on American-brand trucks and SUVs, including GMC. Their technicians have extensive experience with Duramax and EcoTec engines, Allison transmissions, and the electrical systems found in Denali models.

16 Plaine Hill Rd, East Hampton, CT 06424 (Serves Middle Haddam directly)

Specialties & Features

Duramax diesel service
Allison transmission repair
EcoTec engine diagnostics

Business Information

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

Middletown Auto Specialists

4.7
(220 reviews)
Verified

Located a short drive away in Middletown, this shop has built a strong reputation for handling more complex repairs that general mechanics often avoid. They are frequently recommended for transmission work, 4WD system service, and diesel engine maintenance. Their team includes ASE-certified master technicians with specific training on GM platforms.

910 Washington St, Middletown, CT 06457

Specialties & Features

Transmission repair (Allison
10-speed)
4WD and towing system service
heavy-duty truck suspension

Business Information

Years in Business:15 years
Licensed:Yes
Insured:Yes
#3

Gengras GMC (Canton Auto Company)

4.3
(250 reviews)
Verified

As the nearest authorized GMC dealership service center, Gengras (located in Canton but serving the wider region) is the definitive source for factory-trained technicians, genuine GM parts, and the most up-to-date technical service bulletins. This is the premier choice for warranty work, complex Denali electronics, and proprietary software updates that independent shops cannot access.

230 Albany Turnpike, Canton, CT 06022

Specialties & Features

Denali luxury features and electronics
towing package maintenance
factory-certified diagnostics

Business Information

Years in Business:50 years
Licensed:Yes
Insured:Yes

Why These Are the Top GMC Repair Auto Repair Shops in Middle Haddam

** The GMC repair market in the Middle Haddam area is characterized by a few highly skilled independent shops serving a loyal, local customer base, complemented by larger dealerships in surrounding towns. The average quality of service is high, as these businesses rely heavily on reputation and word-of-mouth in a semi-rural community. Competition is not intense in terms of volume, but it is fierce regarding quality; shops that provide poor service do not last long. **Typical Pricing:** Labor rates are competitive with state averages. Independent shops like C & M Auto and Middletown Auto Specialists typically charge between **$120 - $150/hour**, offering significant savings over dealership labor rates. Gengras GMC, as a dealership, will have a higher labor rate, often in the **$160 - $190/hour** range, but provides the assurance of factory-specific tools and training. For complex issues involving electronics or proprietary systems, the dealership can often be more cost-effective in the long run despite the higher initial rate.

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 Middle Haddam regulations and climate