The Best GMC Repair in Port Henry, NY

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

#1

Moriah Automotive & Diesel

4.7
(120 reviews)
Verified

A highly respected local shop known for its deep expertise in both domestic trucks and diesel engines. They are the go-to provider in the immediate area for complex diagnostics and repairs on heavy-duty GMC platforms, including Duramax-powered trucks. Their technicians have direct experience with the towing and 4WD systems common on Sierra and Canyon models.

4212 Main St, Port Henry, NY 12974

Specialties & Features

Duramax diesel service
Heavy-duty suspension
Towing package maintenance

Business Information

Years in Business:18 years
Licensed:Yes
Insured:Yes
#2

Treadwell's Auto & Truck Repair

4.5
(85 reviews)
Verified

While located just south in Ticonderoga, Treadwell's has a strong reputation for serving clients throughout the Port Henry region. They receive consistent praise for their honest diagnostics and ability to handle a wide range of issues, from EcoTec engine problems in smaller SUVs to transmission work on heavier pickups.

112 Montcalm St, Ticonderoga, NY 12883

Specialties & Features

EcoTec engine diagnostics
Allison transmission service
General GMC mechanical repair

Business Information

Years in Business:12 years
Licensed:Yes
Insured:Yes
#3

Champlain Valley Truck & Auto

4.6
(180 reviews)
Verified

Located a short drive north in Crown Point, this established shop is a top choice for owners of 2500/3500 series trucks. They possess the specialized tools and knowledge for advanced transmission and drivetrain work, including the GM 10-speed and complex 4WD systems. Their reviews frequently highlight their professionalism with high-value Denali trims.

89 Bridge Rd, Crown Point, NY 12928

Specialties & Features

Allison
10-speed transmission repair
4WD system service
Denali electronics
comfort systems

Business Information

Years in Business:22 years
Licensed:Yes
Insured:Yes

Why These Are the Top GMC Repair Auto Repair Shops in Port Henry

** The GMC repair market in Port Henry, NY, is characteristic of a small, rural community. There are no dedicated GMC dealership service centers within the town itself, creating a niche filled by a handful of highly capable independent repair shops. The competition is moderate but specialized; the shops that thrive are those with proven expertise in the complex systems of modern GMC trucks, particularly diesel and heavy-duty models which are common in this region. The average quality of service is high, as these local businesses survive on reputation and word-of-mouth. Shops like Moriah Automotive have built long-standing trust by focusing on the specific needs of local truck owners, including farming, logging, and recreational towing. Pricing is generally competitive and often more favorable than traveling to a larger city like Plattsburgh, but it reflects the specialized knowledge and equipment required for diesel engine and transmission work. Customers can expect labor rates in the $110-$140/hour range for this level of specialized service. For complex electronic or transmission issues, the expertise at shops like Champlain Valley Truck & Auto is considered essential.

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 Port Henry regulations and climate