The Best GMC Repair in Dequincy, LA

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

#1

DeQuincy Auto Service & Repair

4.7
(85 reviews)
Verified

A long-standing, family-owned full-service shop that is the primary automotive service center within Dequincy city limits. They have built a strong reputation for honest diagnostics and reliable work on domestic trucks, including GMC. While not a dedicated GMC specialist, their experienced technicians are well-versed in the common issues of Duramax and EcoTec engines, general transmission service, and suspension work for the local community.

110 W 4th St, Dequincy, LA 70633

Specialties & Features

EcoTec engine diagnostics
General transmission service
Suspension
brake repair

Business Information

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

All Pro Automotive & Diesel

4.8
(240 reviews)
Verified

Located in the nearby hub of Sulphur, this shop is a top-tier choice for GMC owners requiring advanced diagnostics and repair. They have specific expertise in diesel performance and heavy-duty systems, making them a go-to for Duramax and Allison transmission service that may be beyond the scope of a general mechanic. They are highly recommended for complex electrical issues and towing system maintenance.

1455 Ruth St, Sulphur, LA 70663

Specialties & Features

Duramax diesel service
Allison transmission repair
Heavy-duty truck suspension

Business Information

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

Lake Charles Diesel & 4x4

4.6
(180 reviews)
Verified

As the name implies, this Lake Charles-based shop specializes in the exact core needs of a GMC truck owner, particularly those with Sierra HD or 1500 models. Their focus is squarely on diesel engines, 4WD system repair, lift kits, and suspension upgrades. They are the premier choice for owners who use their trucks for heavy towing or off-road purposes and require specialized, manufacturer-level knowledge.

1600 Enterprise Blvd, Lake Charles, LA 70601

Specialties & Features

Duramax diesel service
4WD and towing system service
Heavy-duty truck suspension

Business Information

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

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

** The GMC repair market in Dequincy itself is characterized by a single, reputable general repair shop (**DeQuincy Auto Service**) that handles a wide range of common issues for local residents. For routine maintenance and less complex repairs on GMC vehicles, they provide adequate service with high marks for customer trust. However, for the specialized services you've listed—particularly Duramax engine work, complex Allison transmission repairs, and advanced 4WD/electronic diagnostics—residents and businesses in Dequincy typically look to the larger, more specialized markets in nearby Sulphur and Lake Charles. The competition among specialists in these adjacent cities is strong, leading to higher overall quality and more advanced technical capabilities. Pricing is competitive with dealerships but often provides more personalized service and faster turnaround times. Typical labor rates in the region range from $110-$150/hour for general service, with diesel and transmission specialists commanding rates at the higher end of that scale or slightly above. This ecosystem ensures that while Dequincy offers convenient local service for basics, expert-level GMC care is readily available within a short drive.

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 Dequincy regulations and climate