The Best GMC Repair in Bernardsville, NJ

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

#1

Bernardsville Auto Care

4.8
(180 reviews)
Verified

A long-standing, family-owned service center known for its honest diagnostics and high-quality work. While not a dedicated GMC specialist, they have master technicians with extensive experience with GM vehicles. They are the go-to local shop for complex electrical diagnostics, including Denali infotainment and comfort systems, and routine maintenance on all EcoTec and smaller Duramax engines.

66 Morristown Rd, Bernardsville, NJ 07924

Specialties & Features

Denali electronics diagnostics
EcoTec engine service
towing package maintenance

Business Information

Years in Business:25 years
Licensed:Yes
Insured:Yes
#2

Basking Ridge Auto & Transmission

4.7
(220 reviews)
Verified

Located just a 10-minute drive from Bernardsville, this shop has built a stellar reputation for specializing in complex transmission and drivetrain repairs. They are one of the few independent shops in the region with certified expertise in Allison transmissions and GM's newer 10-speed models. They also handle heavy-duty suspension work for Sierra trucks.

301 S Finley Ave, Basking Ridge, NJ 07920

Specialties & Features

Allison transmission repair
10-speed transmission service
heavy-duty truck suspension

Business Information

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

Diesel Diagnostics

4.9
(150 reviews)
Verified

While located in nearby Springfield (~20-minute drive), this provider is the premier specialist for Duramax diesel service in the region and is frequently used by Bernardsville residents with HD trucks. Their entire business is dedicated to diesel performance, repair, and diagnostics. They are the unequivocal experts for complex Duramax issues, emissions system service, and performance enhancements for towing.

45 Springfield Ave, Springfield, NJ 07081

Specialties & Features

Duramax diesel service
4WD and towing system service
diesel engine performance

Business Information

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

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

** The GMC repair market servicing Bernardsville is characterized by high-quality, specialized independent shops rather than a high volume of competitors. Due to the affluence of the area and the complexity of modern GMC vehicles, customer expectations for quality and technical expertise are very high. There is no dedicated GMC-only specialist within Bernardsville's immediate town limits, creating a niche filled by established generalists with GM expertise and nearby specialists. * **Average Quality:** The quality of service providers is generally above average, reflecting the demands of the local clientele. Shops that survive long-term do so through reputation and technical competence. * **Competition Level:** Competition is moderate but specialized. Shops tend to dominate specific niches (e.g., general service, transmissions, diesel) rather than competing directly across all services. The primary competition for independents is the convenience of dealerships, though independents often offer more personalized service and lower labor rates. * **Typical Pricing:** Pricing is premium, commensurate with the northern New Jersey cost of living. Expect labor rates in the $150-$190/hour range. Dealerships will be at the highest end, while specialized independents command rates just below them due to their expertise. For major services like transmission rebuild or Duramax injector replacement, costs can easily run into the thousands of dollars.

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 Bernardsville regulations and climate