The Best GMC Repair in Fishers Island, NY

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

#1

Fishers Island Service Center

4.2
(25 reviews)
Verified

This is the island's primary and only full-service gas station and automotive repair shop. They handle general maintenance, state inspections, tire services, and basic mechanical repairs for all vehicle types, including GMC trucks. For complex issues (e.g., Duramax or transmission), they are the first point of contact and often facilitate the process of sending vehicles to trusted mainland specialists.

5040 Fishers Island, NY 06390

Specialties & Features

General maintenance
state inspections
tire service
basic diagnostics

Business Information

Years in Business:40 years
Licensed:Yes
Insured:Yes
#2

New London Auto Repair

4.8
(280 reviews)
Verified

Located directly off the ferry in New London, CT, this highly reputable shop is a common destination for Fishers Island vehicles. They have certified technicians with advanced diagnostic equipment and extensive experience with American trucks, including GMC and their specific systems like Allison transmissions and EcoTec engines.

345 Captain's Walk, New London, CT 06320

Specialties & Features

Duramax diesel service
Allison transmission repair
advanced engine diagnostics

Business Information

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

Mystic River Motors

4.7
(190 reviews)
Verified

A short drive from the ferry terminal, Mystic River Motors has built a strong reputation for handling complex repairs on luxury and heavy-duty vehicles. They are well-known for their expertise in modern vehicle electronics and drivetrain systems, making them an excellent choice for GMC Denali owners and those with 4WD or towing system issues.

12 Broadway Ave, Mystic, CT 06355

Specialties & Features

4WD and towing system service
Denali electronics
heavy-duty suspension

Business Information

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

Why These Are the Top GMC Repair Auto Repair Shops in Fishers Island

** The GMC repair market for Fishers Island is unique and bifurcated. **On-island service is limited to essential, general maintenance** provided by the long-standing Fishers Island Service Center. For any specialized work—especially concerning diesel engines, complex transmissions, or advanced electronics—residents must rely on mainland providers in southeastern Connecticut. The competition level on the island is non-existent, but the mainland market is robust and competitive, leading to high service quality. Pricing for basic services on the island is standard, while mainland specialist pricing is typical for the region—premium for complex diesel and transmission work but competitive for routine services. The necessity of ferry transport adds a layer of logistics and cost, making it crucial for residents to develop relationships with reliable mainland shops that understand their unique situation.

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 Fishers Island regulations and climate