The Best GMC Repair in Bay Saint Louis, MS

Compare the highest-rated gmc repair mechanics in Bay Saint Louis, Mississippi. All shops are licensed, insured, and verified through our rigorous screening process.

#1

C & M Auto and Truck Repair

4.8
(180 reviews)
Verified

A highly reputable, family-owned shop known for its technical depth and honest service. They are frequently cited in local forums and reviews as the go-to for complex diesel and transmission issues. Their technicians have direct experience with the full range of GMC trucks, from half-ton EcoTec3 engines to heavy-duty Duramax powertrains.

602 Hwy 90, Bay Saint Louis, MS 39520

Specialties & Features

Duramax diesel service
Allison transmission repair
Heavy-duty truck suspension

Business Information

Years in Business:15 years
Licensed:Yes
Insured:Yes
#2

C-Tech Auto & Truck Repair

4.6
(90 reviews)
Verified

C-Tech has built a strong reputation for diagnosing and repairing complex electronic and mechanical issues. They receive consistent praise for their work on modern computer-controlled systems, making them an excellent choice for Denali electronics, engine diagnostics, and towing system integrations.

1201 Hwy 90, Bay Saint Louis, MS 39520

Specialties & Features

EcoTec engine diagnostics
Denali luxury features and electronics
Towing package maintenance

Business Information

Years in Business:10 years
Licensed:Yes
Insured:Yes
#3

Mepp's Automotive Service Center

4.7
(250 reviews)
Verified

A long-standing pillar of the local automotive community, Mepp's is known for its comprehensive service and reliability. While a full-service garage, they have extensive experience with domestic trucks like GMC. They are a trusted name for routine maintenance, suspension work, and transmission services on vehicles used for towing boats and work trailers.

801 Hwy 90, Bay Saint Louis, MS 39520

Specialties & Features

Transmission repair
4WD service
General maintenance and diagnostics

Business Information

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

Why These Are the Top GMC Repair Auto Repair Shops in Bay Saint Louis

The GMC repair market in Bay Saint Louis is characterized by a small number of high-quality, independent shops rather than a high volume of competitors. There is no dedicated GMC dealership in Bay Saint Louis itself (the nearest is in Gulfport), which has created a niche for skilled independents. The average quality of these top-tier shops is very high, as evidenced by their consistently excellent reviews and long-term community presence. Competition for complex jobs (like Duramax repair) is low, but the shops that can perform them are in high demand. Pricing is typical for specialized mechanical work in a coastal community; expect labor rates in the $110-$140/hour range. For routine maintenance, pricing is competitive, but for specialized diesel or transmission work, customers are paying for expertise, not the lowest price. These shops thrive on reputation and technical capability, not mass-market advertising.

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 Bay Saint Louis regulations and climate