The Best GMC Repair in Wallington, NJ

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

#1

A&D Auto Repair & Performance

4.8
(240 reviews)
Verified

A&D is widely regarded as the premier destination for GM truck and SUV owners in the area. They have built a strong reputation for tackling the most complex mechanical and electronic issues, with a significant portion of their work dedicated to high-performance diesel service and transmission rebuilding. Their technicians are known for their diagnostic expertise.

20 River Dr, Garfield, NJ 07026 (Approx. 1.5 miles from Wallington)

Specialties & Features

Duramax diesel service
Allison transmission repair
Heavy-duty truck suspension

Business Information

Years in Business:12 years
Licensed:Yes
Insured:Yes
#2

Certified Auto Repair & Service

4.6
(180 reviews)
Verified

Certified Auto is a well-established, family-owned shop known for its honest service and technical proficiency with modern computer-controlled systems. They receive consistent praise for their work on GM's gasoline engines, including the EcoTec series, and are a trusted source for routine maintenance, transmission service, and electrical diagnostics for Denali models.

208 Main Ave, Wallington, NJ 07057

Specialties & Features

EcoTec engine diagnostics
Transmission service
Denali electronics

Business Information

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

All-Test Automotive & Truck Repair

4.5
(150 reviews)
Verified

All-Test lives up to its name by providing comprehensive diagnostic and repair services for both passenger and light-duty commercial trucks. They are a strong alternative for GMC owners, particularly those with 4WD and towing needs. Their service includes detailed inspections of towing packages, transfer cases, and differentials.

15 Central Ave, Wallington, NJ 07057

Specialties & Features

4WD and towing system service
Diesel engine service
Towing package maintenance

Business Information

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

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

** The GMC repair market in and around Wallington, NJ, is competitive and characterized by a mix of general auto repair shops and a few highly specialized providers. The average quality is good, with several shops capable of handling routine maintenance on GMC vehicles. However, true specialists for complex systems like Duramax diesel and Allison transmissions are fewer and command a premium. These top-tier shops are distinguished by their investment in proprietary diagnostic tools, ongoing technician training, and a track record of solving difficult problems. Pricing is typically in line with the Northern New Jersey market, which is above the national average. Labor rates for specialist work can range from $130 to $180 per hour. For major services like a transmission rebuild or diesel injector replacement, customers should expect estimates in the several thousand-dollar range. The competition ensures that these shops must maintain high customer satisfaction and technical excellence to remain the top choices for discerning GMC owners.

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 Wallington regulations and climate