The Best GMC Repair in Saint Johnsbury, VT

Compare the highest-rated gmc repair mechanics in Saint Johnsbury, Vermont. All shops are licensed, insured, and verified through our rigorous screening process.

#1

St. Johnsbury Automotive

4.7
(180 reviews)
Verified

A long-standing, family-owned shop known for its highly skilled technicians and ability to handle complex diagnostics and repairs on both domestic and import vehicles. They have a strong reputation for honesty, thorough work, and specializing in the diesel engines and transmission systems common in GMC trucks.

383 Portland St, St Johnsbury, VT 05819

Specialties & Features

Duramax diesel service
Allison transmission repair
4WD and towing system service

Business Information

Years in Business:20 years
Licensed:Yes
Insured:Yes
#2

Gary's Service Center

4.5
(90 reviews)
Verified

Gary's has built a loyal local customer base over decades by providing reliable, high-quality mechanical work. They are frequently recommended for transmission work and general engine repair on American trucks and SUVs. Their technicians are experienced with the full range of GMC models, from light-duty to heavy-duty pickups.

1106 Memorial Dr, St Johnsbury, VT 05819

Specialties & Features

Transmission repair (Allison)
EcoTec engine diagnostics
heavy-duty truck suspension

Business Information

Years in Business:30 years
Licensed:Yes
Insured:Yes
#3

Diamond Hill Automotive

4.6
(110 reviews)
Verified

While located just outside the town center, Diamond Hill Automotive is a highly respected shop that serves the entire Northeast Kingdom. They are known for their modern diagnostic equipment and technical expertise, particularly with engine performance and electrical systems, making them a strong choice for complex GMC issues.

2582 US-5, Waterford, VT 05819 (Serves the St. Johnsbury area)

Specialties & Features

EcoTec engine diagnostics
Denali luxury features and electronics
towing package maintenance

Business Information

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

Why These Are the Top GMC Repair Auto Repair Shops in Saint Johnsbury

** The GMC repair market in Saint Johnsbury reflects its rural Vermont setting. There is **no dedicated GMC or Cadillac dealership** in the immediate area, which places the responsibility of specialized repair entirely on independent auto service centers. The **competition level is moderate**, with a handful of highly reputable, long-standing shops dominating the market for truck and SUV repair. The average quality of service is notably high, as these businesses have survived by building trust and demonstrating expertise over many years, often across multiple generations of customers. Typical pricing is competitive for a rural area but can be higher than national chain averages due to the level of specialized knowledge required for complex systems like Duramax diesel and Allison transmissions. Customers are generally paying for experienced technicians rather than corporate overhead. For major engine or transmission work, it is common for residents to use these local St. Johnsbury specialists rather than traveling to dealerships in larger cities like Montpelier or Littleton, NH, due to the proven reliability and personalized service.

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 Saint Johnsbury regulations and climate