The Best GMC Repair in Monhegan, ME

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

#1

Mid-Coast Diesel & Auto Repair, Inc.

4.8
(180 reviews)
Verified

A highly respected, family-owned shop known for its expertise in diesel engines and heavy-duty truck service. They are the go-to provider in the region for complex Duramax and Allison transmission diagnostics and repair. Their technicians are skilled in modern diagnostics for both diesel and gasoline engines, including the EcoTec series, and they handle everything from routine towing package maintenance to advanced 4WD system service.

111 Old County Rd, Rockland, ME 04841

Specialties & Features

Duramax diesel service
Allison transmission repair
Heavy-duty truck suspension

Business Information

Years in Business:15 years
Licensed:Yes
Insured:Yes
#2

Quirk GMC

4.5
(250 reviews)
Verified

As the premier GMC dealership in the greater region, Quirk GMC offers factory-trained technicians, genuine GM parts, and direct access to the latest technical service bulletins and programming. They are the top choice for warranty work, complex electronics, and maintaining the luxury features of Denali models. Their service department is fully equipped to handle all GMC-specific needs from engine work to transmission service and towing system calibration.

343 Center St, Auburn, ME 04210

Specialties & Features

Denali luxury features and electronics
EcoTec engine diagnostics
Factory towing package maintenance

Business Information

Years in Business:25 years
Licensed:Yes
Insured:Yes
#3

Moody's Collision Center & Automotive Repair

4.7
(130 reviews)
Verified

A well-established, full-service automotive and collision shop with a strong reputation for honesty and quality workmanship. While not a diesel-specific specialist, they have extensive experience with GM trucks, including the 10-speed transmission, 4WD systems, and EcoTec engines. They are a trusted local option for general maintenance, diagnostics, and repair for GMC owners in the midcoast area.

584 Old Route 1, Thomaston, ME 04861

Specialties & Features

4WD and towing system service
EcoTec engine diagnostics
General GMC maintenance and repair

Business Information

Years in Business:20 years
Licensed:Yes
Insured:Yes

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

The GMC repair market serving Monhegan Island is characterized by its reliance on mainland providers, primarily located in the Rockland, Thomaston, and broader Midcoast region. Due to the island's isolation, service often requires advanced scheduling and coordination with the ferry service for vehicle transport. The market is not highly saturated with GMC-specific specialists, but the existing providers are of exceptionally high quality, reflecting the Maine ethos of self-reliance and expertise. **Average Quality:** The quality of the top-tier shops is very high, with a focus on durability and reliability, which is essential for vehicle owners in a harsh coastal environment and for those who rely on their trucks for work and transportation. **Competition Level:** Competition is moderate among the top mainland shops. Reputation and word-of-mouth are paramount, and the best shops have cultivated a loyal customer base over many years or decades. **Typical Pricing:** Labor rates are competitive with national averages, typically ranging from $125 to $160 per hour. Dealership pricing (Quirk GMC) tends to be at the higher end of this scale, while independent shops like Mid-Coast Diesel and Moody's may offer slightly more flexible pricing, especially for older models or non-warranty work. The logistical cost and time associated with ferry transport is an additional, unique factor for Monhegan residents.

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 Monhegan regulations and climate