The Best GMC Repair in Lake Hopatcong, NJ

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

#1

Denville Transmission & Auto Repair

4.8
(280 reviews)
Verified

A highly reputable, family-owned shop known for its technical expertise in complex drivetrain systems. They are a local leader in Allison transmission rebuilds and Duramax diesel service, making them a top choice for GMC Sierra HD owners. Their technicians are continuously trained on the latest technologies.

33 Route 46 East, Denville, NJ 07834

Specialties & Features

Allison transmission repair
Duramax diesel service
4WD system service

Business Information

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

Jefferson Auto & Truck Repair

4.7
(180 reviews)
Verified

Located just minutes from Lake Hopatcong, this shop has deep roots in the community and specializes in servicing the trucks and SUVs common to the area. They have extensive experience with the full range of GMC vehicles, from heavy-duty suspension work on Sierras to the sophisticated electronics and towing systems on Yukon Denalis.

66 Dover Milton Road, Jefferson, NJ 07849

Specialties & Features

Heavy-duty truck suspension
towing package maintenance
EcoTec engine diagnostics

Business Information

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

Byram Auto Pros

4.6
(150 reviews)
Verified

While a slightly shorter drive from Lake Hopatcong, Byram Auto Pros is frequently recommended for their diagnostic capabilities and quality service on modern vehicles. They excel at troubleshooting complex electrical and electronic issues, making them an excellent choice for Denali owners experiencing problems with infotainment systems, driver aids, or other luxury features.

249 Route 206, Byram Township, NJ 07874

Specialties & Features

Denali luxury features and electronics
EcoTec engine diagnostics
general GMC service

Business Information

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

Why These Are the Top GMC Repair Auto Repair Shops in Lake Hopatcong

** The GMC repair market in the Lake Hopatcong area is characterized by a few high-quality, independent shops rather than a high volume of competitors. Due to the lake and rural surroundings, there is strong demand for expertise in 4WD systems, diesel engines, and towing—services that general mechanics often lack. The average quality of these specialized shops is high, as they have built their reputation on serving a knowledgeable clientele with expensive trucks and SUVs. Competition is healthy but not saturated, focusing on technical prowess and customer service rather than price-cutting. Typical pricing is in line with northern New Jersey standards; expect premium labor rates for specialized diesel and transmission work, but often at a significant savings compared to dealership service departments. Customers in this market prioritize proven expertise and reliability over convenience or lowest cost.

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 Lake Hopatcong regulations and climate