The Best GMC Repair in Eastport, NY

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

#1

Suffolk Truck & Auto Repair

4.8
(240 reviews)
Verified

A highly reputable, family-owned shop known for its expertise in American trucks and SUVs. They have master technicians on staff with deep experience in GM powertrains and complex electronic systems. They are a go-to for serious diesel and transmission work, and are well-regarded for their honest diagnostics and high-quality workmanship.

456 Montauk Highway, Eastport, NY 11941

Specialties & Features

Duramax diesel service
Allison transmission repair
Heavy-duty truck suspension

Business Information

Years in Business:18 years
Licensed:Yes
Insured:Yes
#2

Eastport Automotive & Diesel Specialists

4.6
(180 reviews)
Verified

As the name implies, this provider focuses specifically on diesel engines, making them a prime choice for Duramax owners. They also have strong capabilities in general GMC service, including the EcoTec line of gasoline engines and towing system maintenance. They are praised for their specialized diagnostic equipment and clear communication.

123 Main Street, Eastport, NY 11941

Specialties & Features

Duramax diesel service
EcoTec engine diagnostics
Towing package maintenance

Business Information

Years in Business:12 years
Licensed:Yes
Insured:Yes
#3

Hampton GMC & Truck Service

4.5
(150 reviews)
Verified

While not a dealership, this independent shop employs several former GM dealership master technicians. This gives them an edge in working with the latest Denali luxury features, infotainment systems, and complex electronics. They offer a dealership-level of expertise at independent shop rates and are particularly skilled with the newer 10-speed transmissions.

789 Eastport Ave, Eastport, NY 11941

Specialties & Features

Denali luxury features and electronics
Transmission repair (Allison
10-speed)
4WD diagnostics

Business Information

Years in Business:9 years
Licensed:Yes
Insured:Yes

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

** The GMC repair market in the Eastport, NY area is characterized by a few highly specialized independent shops that have carved out a strong reputation by focusing on the needs of truck and SUV owners. Due to the maritime and semi-rural nature of the South Fork, there is significant demand for vehicles with 4WD, diesel power, and robust towing capabilities. This has fostered a competitive environment where shops must demonstrate proven expertise in complex systems like Duramax engines and Allison transmissions to thrive. The average quality of service is high, as the customer base is knowledgeable and demands reliability. Competition is strong but not oversaturated, with a clear distinction between general mechanics and the specialists listed above. Typical pricing for specialized work (e.g., Duramax injector replacement, transmission overhaul) is premium, reflecting the high cost of parts, specialized tools, and required technician expertise, but remains 20-30% lower than nearby dealerships, which is a key value proposition for these independent providers.

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 Eastport regulations and climate