The Best GMC Repair in Jefferson, NY

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

#1

County Line Auto & Truck Repair

4.8
(180 reviews)
Verified

A family-owned and operated business with a strong reputation for expertise in both domestic cars and heavy-duty trucks. They are known for their honest diagnostics, high-quality workmanship, and ability to handle complex repairs on modern GMC trucks, including Duramax and Allison systems. They are a top choice for farmers, contractors, and everyday drivers in the Schoharie County area.

4642 State Route 7, Oneonta, NY 13820

Specialties & Features

Duramax diesel service
Allison transmission repair
heavy-duty truck suspension

Business Information

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

Fox Toyota Service Center (Fox Certified Collision & Service)

4.6
(250 reviews)
Verified

While part of a Toyota dealership, their service department has certified technicians trained on all makes and models, with specific expertise in domestic trucks common to the region. They have the advanced diagnostic tools and factory-level training necessary to address complex electronic and powertrain issues on GMC Denali models and modern EcoTec engines.

4489 Commercial Dr, Oneonta, NY 13820

Specialties & Features

EcoTec engine diagnostics
Denali luxury features and electronics
towing package maintenance

Business Information

Years in Business:25 years
Licensed:Yes
Insured:Yes
#3

C & S Automotive

4.7
(120 reviews)
Verified

A well-respected, independent shop known for its personalized service and deep technical knowledge. They excel in general automotive repair with a strong focus on drivetrain and 4WD systems, making them a reliable choice for GMC owners needing transmission service, 4WD diagnostics, and routine towing system maintenance.

289 Main St, Cobleskill, NY 12043

Specialties & Features

Transmission repair
4WD and towing system 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 Jefferson

** The GMC repair market for Jefferson, NY, and the greater Schoharie County area is characterized by a reliance on trusted local and regional specialists rather than a high volume of direct competitors. Due to the rural nature of the region, service providers who specialize in the heavy-duty and truck segments (like Duramax and Allison systems) are in high demand but limited in supply. This often leads to longer wait times for appointments at the most reputable shops. The competition level is moderate, with a few highly-regarded shops dominating the reputation landscape. Pricing is typically competitive with national averages but can be slightly higher than in urban areas due to lower part availability and the need for specialized expertise that commands a premium. Quality is generally very high among the top-tier providers, as they rely heavily on community reputation and word-of-mouth referrals. For the most advanced electronic or luxury feature diagnostics (e.g., on Denali models), residents often travel to the larger service centers in Oneonta, which have the necessary proprietary tooling and software.

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 Jefferson regulations and climate