Top 3 GMC Repair Shops in Shelby

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

#1

Thompson Diesel & Auto Repair

4.8
(240 reviews)
Verified

A highly respected, family-owned shop known for its deep expertise in diesel performance and repair. They are the go-to specialists for complex Duramax engine work, performance tuning, and heavy-duty truck maintenance. Their technicians have direct experience with the specific demands of GMC trucks used for towing and commercial purposes.

100 County Services Dr, Pelham, AL 35124 (Approx. 5 miles from Shelby)

Specialties & Features

Duramax diesel service
Allison transmission repair
Heavy-duty truck suspension

Business Information

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

Long-Lewis Ford of Pelham (GMC/Cadillac Service Department)

4.4
(180 reviews)
Verified

As a major dealership, their service department has direct access to GM-specific tools, training, and parts. They are the best-equipped provider for diagnosing and repairing complex electronic issues in Denali models, updating software, and handling factory towing package maintenance and recalls.

2700 Southgate Dr, Pelham, AL 35124 (Approx. 5 miles from Shelby)

Specialties & Features

Denali luxury features and electronics
Towing package maintenance
EcoTec engine diagnostics

Business Information

Years in Business:25 years
Licensed:Yes
Insured:Yes
#3

Cottons Auto Service

4.7
(150 reviews)
Verified

A well-established, trusted local shop with a strong reputation for honest diagnostics and comprehensive service. They excel in general GMC maintenance, transmission services, and 4WD system repairs. They are known for personalized service and are a great alternative to the dealership for routine and complex mechanical work.

100 Amphitheater Rd, Pelham, AL 35124 (Approx. 4 miles from Shelby)

Specialties & Features

Transmission repair (Allison
10-speed)
4WD and towing system service
EcoTec engine diagnostics

Business Information

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

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

** The GMC repair market in the Shelby, AL area is robust and competitive, largely centered in the adjacent commercial hub of Pelham. The quality of service providers is generally high, driven by a local customer base that includes both personal-use truck owners and commercial operators who demand reliability. **Competition Level:** High. Residents have a clear choice between specialized independent shops (like Thompson Diesel and Cottons) that offer deep, personalized expertise, and the factory-backed dealership (Long-Lewis) that offers OEM parts and direct technical support. This competition benefits consumers in terms of service options and pricing tiers. **Typical Pricing:** Pricing follows a clear tiered structure. Dealership services (Long-Lewis) typically command a premium for diagnostics and labor, justified by their specialized OEM equipment and factory-trained technicians. Independent specialists (Thompson Diesel, Cottons) generally offer more competitive labor rates, often 15-25% lower, while still providing high-quality service, especially for mechanical repairs. Parts pricing can be comparable, though independents have the flexibility to use high-quality aftermarket options. For a GMC owner in Shelby, the key decision point is the nature of the repair: complex electronics and warranty work lean towards the dealership, while diesel performance, transmission overhauls, and general heavy-duty maintenance are often best handled by the top-tier independent specialists.

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 Shelby regulations and climate