The Best GMC Repair in Sound Beach, NY

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

#1

Corwin's GMC Service

4.8
(180 reviews)
Verified

A family-owned and operated business with a sterling reputation for specializing exclusively in GM vehicles. They are renowned for their deep technical knowledge, especially with complex Duramax and Allison systems. Customers frequently praise their honesty, fair pricing, and ability to diagnose difficult problems that dealerships and other shops cannot.

525 Middle Country Rd, Middle Island, NY 11953

Specialties & Features

Duramax diesel service
Allison transmission repair
GMC electronics diagnostics

Business Information

Years in Business:22 years
Licensed:Yes
Insured:Yes
#2

All Pro Automotive

4.7
(240 reviews)
Verified

A highly respected, full-service shop known for its advanced diagnostics and capability to handle both domestic and import vehicles, with a strong emphasis on GM trucks and SUVs. Their technicians are ASE Certified and have extensive experience with 4WD systems, towing package maintenance, and EcoTec engine diagnostics.

2080 Middle Country Rd, Centereach, NY 11720

Specialties & Features

4WD and towing system service
EcoTec engine diagnostics
heavy-duty suspension

Business Information

Years in Business:18 years
Licensed:Yes
Insured:Yes
#3

Mavis Tire & Brakes

4.4
(290 reviews)
Verified

While part of a larger chain, this specific location has built a strong local reputation for general mechanical repair and specialized services on GM vehicles. They are a reliable option for routine maintenance, brake service, suspension work, and transmission services, including on Allison units. They offer a strong warranty and convenience.

275 Route 25A, Miller Place, NY 11764

Specialties & Features

Heavy-duty truck suspension
transmission service
general GMC maintenance

Business Information

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

Why These Are the Top GMC Repair Auto Repair Shops in Sound Beach

** The GMC repair market serving Sound Beach, NY, is characterized by a mix of local specialists and larger chain providers in neighboring communities like Miller Place, Rocky Point, Middle Island, and Centereach. Due to the high number of trucks and SUVs on Long Island, expertise in 4WD systems and towing is common, but true specialization in complex areas like Duramax diesel and Allison transmission repair is a key differentiator that only a few top-tier shops possess. The competition is strong, driving a focus on customer service and fair pricing. Consumers are generally savvy and expect high-quality work. Typical pricing for specialized services is in line with regional averages: diesel injector work can range from $1,500+, Allison transmission service from $200-$400 for fluid changes, and major overhauls can exceed $4,000. The most reputable shops distinguish themselves through transparency, certifications, and long-term community presence. For the most complex issues—particularly with Denali electronics or diesel performance—residents of Sound Beach are best served by seeking out the dedicated GM specialists in the wider area.

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 Sound Beach regulations and climate