The Best GMC Repair in Nesconset, NY

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

#1

Smithtown Auto Repair

4.8
(280 reviews)
Verified

A family-owned and operated business with a long-standing reputation for honesty and expertise in both domestic and import vehicles. They are particularly noted for their advanced diagnostics capabilities and their proficiency with complex modern engines, including GM's EcoTec and Duramax platforms. Their technicians are ASE Certified and they invest in ongoing training to stay current with GMC's evolving technology.

320 E Main St, Smithtown, NY 11787

Specialties & Features

EcoTec engine diagnostics
Allison transmission service
Denali electronics

Business Information

Years in Business:25 years
Licensed:Yes
Insured:Yes
#2

C&C Auto Service Inc.

4.7
(190 reviews)
Verified

C&C Auto Service has built a strong local reputation for reliability and technical competence, especially with American trucks and SUVs. They receive consistent praise for their work on drivability issues, transmission services, and suspension work. They are a go-to shop for GMC Sierra and Yukon owners needing routine maintenance or more complex repairs on 4WD and towing systems.

130 Lake Ave S, Nesconset, NY 11767

Specialties & Features

4WD and towing system service
heavy-duty suspension
transmission repair

Business Information

Years in Business:15 years
Licensed:Yes
Insured:Yes
#3

CV8 Performance & Repair

4.6
(120 reviews)
Verified

While performance-oriented, this shop has deep expertise in the GM vehicle platform, making them an excellent choice for GMC owners, particularly those with Denali trims or performance expectations. They are specialists in powertrain diagnostics and repair, with a focus on both gasoline and diesel applications. They are well-versed in the intricacies of GM's 10-speed automatic and Duramax diesel service.

672 Smithtown Bypass, Smithtown, NY 11787

Specialties & Features

Duramax diesel service
performance diagnostics
transmission repair

Business Information

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

Why These Are the Top GMC Repair Auto Repair Shops in Nesconset

** The GMC repair market in the Nesconset area is competitive and characterized by a mix of long-established general repair shops and newer, more specialized performance or diesel-focused garages. The average quality is high, driven by a knowledgeable local customer base that values reliability and expertise, particularly for their trucks and SUVs. Competition is strong, which benefits consumers through competitive pricing and a focus on customer service. Typical pricing falls within the standard range for Long Island. Independent specialists generally offer rates 20-30% lower than the local GMC dealership while often providing more personalized service and equivalent or superior technical expertise for complex mechanical issues. For highly specialized diesel (Duramax) or advanced electronic (Denali) work, consumers are often willing to travel slightly outside Nesconset proper to access the top experts, as reflected in the list above. The most reputable shops are typically ASE Certified, licensed, and fully insured, providing customers with significant peace of mind.

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 Nesconset regulations and climate