The Best GMC Repair in Marietta, GA

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

#1

C&C Automotive

4.8
(280 reviews)
Verified

A highly respected, family-owned and operated shop known for its technical expertise with GM vehicles. They have built a stellar reputation for diagnosing and repairing complex issues on modern GMC trucks, from Duramax engine performance to advanced electronic systems. Their technicians are consistently praised for their honesty, transparency, and high-quality workmanship.

1475 Roswell Rd, Marietta, GA 30062

Specialties & Features

Duramax diesel service
Allison transmission repair
EcoTec engine diagnostics

Business Information

Years in Business:20 years
Licensed:Yes
Insured:Yes
#2

Marietta Auto Service & Repair

4.7
(190 reviews)
Verified

This well-established shop is a staple in the Marietta community and is frequently recommended for domestic truck and SUV repair. They have specific expertise in GMC platforms, offering comprehensive services from routine maintenance on towing packages to major transmission and 4WD system overhauls. They are known for using high-quality parts and providing clear, detailed explanations to customers.

1393 S Marietta Pkwy, Marietta, GA 30067

Specialties & Features

Transmission repair (Allison
10-speed)
4WD and towing system service
heavy-duty truck suspension

Business Information

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

Auto Tech of Marietta

4.6
(160 reviews)
Verified

Auto Tech has built a strong reputation for its diagnostic capabilities, particularly with the sophisticated electronics found in GMC Denali models and modern EcoTec engines. They are a go-to shop for troubleshooting issues that other shops cannot resolve, including infotainment systems, driver-assist features, and engine performance codes. They also handle standard maintenance and repair for the entire GMC lineup.

1213 Roswell Rd, Marietta, GA 30062

Specialties & Features

Denali luxury features and electronics
EcoTec engine diagnostics
towing package maintenance

Business Information

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

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

** The GMC repair market in Marietta is robust and competitive, reflecting the area's high ownership rates of trucks and SUVs. The average quality of service is high, with several independent shops successfully competing with dealership service departments by offering specialized expertise, more personalized service, and often more competitive pricing. * **Average Quality:** The top-tier independent specialists, like those listed above, often exceed dealership levels in customer satisfaction and personalized diagnostics. The market also contains many competent general repair shops, but for the specific complex systems in modern GMCs (especially Duramax, Allison, and Denali electronics), specialization is key. * **Competition Level:** High. Competition exists between dealerships (like Carl Black GMC in Kennesaw) and a dense network of independent auto repair shops. The most successful independents are those that have carved out a niche with specific manufacturer expertise and certified technicians. * **Typical Pricing:** Labor rates are generally 10-30% lower than at the nearby dealerships. Expect to pay between **$120 - $150 per hour** for labor at a high-quality independent specialist. Parts pricing is often more flexible, with many shops offering OEM-equivalent options as a cost-saving alternative to genuine GM parts, without sacrificing quality. Complex jobs like transmission rebuilds or Duramax injector replacement will represent a significant investment regardless of the provider, but the value comes from the expertise and warranty offered.

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 Marietta regulations and climate