The Best GMC Repair in Mayo, SC

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

#1

Certified Diesel & Performance

4.8
(187 reviews)
Verified

A highly specialized shop focused exclusively on diesel performance and repair. They are the go-to experts in the Upstate for complex Duramax diagnostics, performance tuning, and Allison transmission rebuilding. Their technicians have advanced training and they cater to owners of heavy-duty GMC Sierra 2500/3500 trucks.

1245 Boiling Springs Rd, Spartanburg, SC 29303

Specialties & Features

Duramax diesel service
Allison transmission repair
Heavy-duty truck suspension

Business Information

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

Gaffney Auto Tech

4.5
(214 reviews)
Verified

A well-established, full-service garage with a strong reputation for handling a wide array of domestic trucks. They have specific diagnostic tools for GMC vehicles and are known for their reliable work on 4WD systems, EcoTec engines, and general towing package maintenance. They offer a good balance of expertise and value.

802 Cherokee Ave, Gaffney, SC 29341

Specialties & Features

4WD and towing system service
EcoTec engine diagnostics
General GMC maintenance

Business Information

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

Spartanburg GMC Service (Formerly Smith's Automotive)

4.3
(92 reviews)
Verified

While not a dealership, this independent shop employs several former dealership master technicians specializing in GMC and Chevrolet. They are particularly adept at addressing the luxury features and complex electronics found in GMC Denali models, in addition to standard mechanical repairs. A strong choice for late-model GMC owners.

2875 East Main St, Spartanburg, SC 29307

Specialties & Features

Denali luxury features and electronics
Towing package maintenance
GMC-specific diagnostics

Business Information

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

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

** The GMC repair market for residents of Mayo, SC, is characterized by a need to travel to neighboring commercial centers for specialized service. The local market within Mayo itself consists of one or two general repair shops capable of handling basic maintenance but not the advanced, brand-specific diagnostics and repairs required for Duramax engines, Allison transmissions, or Denali electronics. The competition in the broader region (Spartanburg & Gaffney) is moderate to high, leading to a range of quality and pricing. Specialists like Certified Diesel & Performance command premium pricing due to their exclusive focus and advanced capabilities, often 15-25% higher than a general mechanic. Shops like Gaffney Auto Tech offer more competitive, mid-range pricing for less complex services. Overall, the market is serviceable for GMC owners, but it requires research to match the specific repair need (e.g., diesel performance vs. luxury SUV electronics) with the correct specialist shop.

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 Mayo regulations and climate