The Best GMC Repair in Cold Spring Harbor, NY

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

#1

Smithtown Auto Tech

4.8
(284 reviews)
Verified

A family-owned and operated service center renowned for its diagnostic expertise and work on complex modern vehicles. They are particularly praised for their work on American trucks and SUVs, with several master technicians proficient in GMC's specific systems, including Duramax and Allison. They offer personalized service and a strong warranty on their work.

320 E Main St, Smithtown, NY 11787

Specialties & Features

Duramax diesel service
Allison transmission repair
EcoTec engine diagnostics

Business Information

Years in Business:22 years
Licensed:Yes
Insured:Yes
#2

Huntington Auto Service Inc.

4.7
(197 reviews)
Verified

This well-established shop has built a strong reputation for honesty and technical competence. They invest in ongoing technician training and have the specialized diagnostic tools required for GMC's advanced electronics and drivetrains. They are a top choice for 4WD system service, suspension work, and addressing issues specific to Denali trim levels.

1750 E Jericho Turnpike, Huntington, NY 11743

Specialties & Features

4WD and towing system service
Denali luxury features and electronics
Heavy-duty truck suspension

Business Information

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

C & G Auto Repair

4.6
(163 reviews)
Verified

Known for their practical, no-nonsense approach to repairing and maintaining trucks used for heavy-duty purposes. Their technicians have extensive experience with the mechanical and electrical demands of towing, making them experts in towing package maintenance, transmission longevity, and diesel engine performance for customers who use their GMC trucks for work and recreation.

601 W Jericho Turnpike, Huntington, NY 11743

Specialties & Features

Towing package maintenance
Diesel engine service (Duramax)
Transmission repair (Allison
10-speed)

Business Information

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

Why These Are the Top GMC Repair Auto Repair Shops in Cold Spring Harbor

** The GMC repair market serving Cold Spring Harbor is characterized by high-quality, independent service centers located in the adjacent towns of Huntington and Smithtown. Due to the affluent nature of the area and the prevalence of high-end vehicles like the GMC Denali, these shops are accustomed to working on complex, late-model vehicles and provide a level of service that often surpasses that of high-volume dealerships. **Average Quality:** The quality is exceptionally high. These top-tier independents compete directly with dealerships by offering more personalized service, often lower labor rates, and technicians who are passionate specialists in American-brand trucks and SUVs. **Competition Level:** Competition is strong but professional. It is not a price-war market; instead, shops compete on reputation, technical specialization, diagnostic capability, and customer service. Shops that cannot handle the advanced electronics of a Denali or the high-pressure systems of a Duramax do not survive long. **Typical Pricing:** Labor rates are in the upper tier for the region, typically ranging from **$150 - $190 per hour**. This reflects the high cost of operation, advanced training, and specialized tooling required. Customers are generally willing to pay a premium for expert-level diagnostics and repair, especially on their high-value trucks.

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 Cold Spring Harbor regulations and climate