The Best GMC Repair in Amityville, NY

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

#1

Cona Auto Service - Elwood

4.8
(280 reviews)
Verified

A premier, family-owned service center with a sterling reputation for expert diagnostics and repair. While not exclusively a GMC specialist, their master technicians have deep expertise with GM vehicles. They are known for their honest assessments, high-quality workmanship, and advanced diagnostic equipment, making them a top choice for complex electrical and engine issues on GMC trucks and SUVs.

1789 Jericho Turnpike, Elwood, NY 11731

Specialties & Features

EcoTec engine diagnostics
Denali electronics
towing package maintenance

Business Information

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

Certified Auto Repair of Long Island

4.7
(190 reviews)
Verified

A well-established, AAA-approved shop known for its technical proficiency and customer service. They have specific expertise in domestic trucks and SUVs. Their technicians are highly trained in modern computer systems, making them an excellent resource for troubleshooting the sophisticated electronics in Denali models and ensuring towing systems are fully integrated and functional.

360 W Sunrise Hwy, Amityville, NY 11701

Specialties & Features

Transmission repair
4WD service
heavy-duty suspension

Business Information

Years in Business:20 years
Licensed:Yes
Insured:Yes
#3

Suffolk Diesel & Turbo

4.9
(150 reviews)
Verified

This is the definitive regional expert for the most critical specialty you requested: Duramax diesel service. While located just outside Amityville, they are the unequivocal go-to for Long Island GMC owners with diesel powertrains. Their entire business is built around diesel performance, repair, and diagnostics, including Allison transmission service. For any serious Duramax issue, this is the top-tier specialist.

515 Medford Ave, Patchogue, NY 11772

Specialties & Features

Duramax diesel service
Allison transmission repair
diesel performance tuning

Business Information

Years in Business:10 years
Licensed:Yes
Insured:Yes

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

** The GMC repair market in Amityville is robust and competitive, characterized by a mix of long-standing, general auto repair shops and highly specialized regional providers. The average quality is high, as independent shops must compete with local dealerships by offering more personalized service, often at a lower labor rate. Typical pricing for general repairs is competitive with the Long Island average, but specialized work, particularly on Duramax engines and Allison transmissions, commands a premium due to the required expertise and equipment. While several competent local shops (like Certified Auto Repair) can handle most GMC needs, including suspension, 4WD, and standard engine work, the market demonstrates a clear division of labor for peak specialization. For routine maintenance and non-diesel issues, Amityville residents have excellent local options. However, for the most complex diesel and performance-related tasks, the market consistently directs customers to dedicated specialists like Suffolk Diesel & Turbo, even if it requires a short drive. This indicates a mature and knowledgeable consumer base that understands the value of niche expertise for their high-value vehicles.

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 Amityville regulations and climate