The Best GMC Repair in Simpsonville, SC

Compare the highest-rated gmc repair mechanics in Simpsonville, South Carolina. All shops are licensed, insured, and verified through our rigorous screening process.

#1

C&C Automotive and Diesel

4.8
(240 reviews)
Verified

A highly regarded, family-owned shop known for its expertise in both domestic and diesel vehicles. They have built a strong reputation for honest diagnostics, quality workmanship, and specializing in the complex systems of modern GMC trucks, particularly Duramax diesel and Allison transmission services. They are a top choice for heavy-duty truck owners.

304 SE Main St, Simpsonville, SC 29681

Specialties & Features

Duramax diesel service
Allison transmission repair
Heavy-duty truck suspension

Business Information

Years in Business:12 years
Licensed:Yes
Insured:Yes
#2

G&M Auto Service Center

4.7
(180 reviews)
Verified

A well-established, full-service auto repair center with a significant focus on American trucks and SUVs. They receive consistent praise for their knowledgeable technicians and their ability to handle a wide range of services, from routine maintenance on EcoTec engines to more complex 4WD and electronic system diagnostics common in Denali models.

211 N Pendleton St, Simpsonville, SC 29681

Specialties & Features

EcoTec engine diagnostics
4WD and towing system service
Denali luxury features and electronics

Business Information

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

Greenville Diesel & Automotive (Serves the Simpsonville area)

4.9
(150 reviews)
Verified

While technically located just across the border in Mauldin, this specialist is consistently recommended by Simpsonville residents for one reason: their exclusive, deep expertise in diesel powertrains. They are the premier specialist for complex Duramax engine repair and performance, Allison transmission rebuilding, and heavy-duty towing system maintenance. For serious diesel-specific work, they are the regional expert.

225 E Butler Rd, Mauldin, SC 29662

Specialties & Features

Duramax diesel service
Allison transmission repair
Towing package maintenance

Business Information

Years in Business:8 years
Licensed:Yes
Insured:Yes

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

** The GMC repair market in Simpsonville is robust and competitive, reflecting the area's strong affinity for trucks and SUVs. The average quality of service is high, with several independent shops successfully competing with dealerships by offering specialized expertise, more personalized service, and often more competitive pricing. * **Average Quality & Competition:** The market is bifurcated. There are many competent general repair shops, but only a handful possess the specific tooling, software, and technician certifications for advanced GMC systems like Duramax diesel and Allison transmissions. This creates a niche for the top-tier specialists identified above, who face little direct competition from general mechanics but compete with each other and the GMC dealerships in nearby Greenville. * **Typical Pricing:** Pricing is generally competitive with dealerships but can be 15-30% lower for labor at independent shops. However, for specialized diesel and transmission work, the pricing is premium due to the required expertise and equipment. Customers can expect to pay a fair market rate that reflects the high level of specialization. Most reputable shops provide free initial diagnostics and detailed, upfront estimates. * **Key Differentiators:** The top shops distinguish themselves through GMC-specific diagnostic capabilities, investment in ongoing technician training, and a focus on the complex electronic systems that govern modern GMC trucks, from Denali infotainment to sophisticated 4WD and towing controls.

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 Simpsonville regulations and climate