The Best GMC Repair in Stewartville, MN

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

#1

Stewartville Auto Service

4.7
(120 reviews)
Verified

A long-standing, family-owned full-service shop in the heart of Stewartville. They are known for their honest diagnostics and ability to handle a wide range of repairs on domestic vehicles, including GMC trucks and SUVs. They have built a strong reputation for customer service and are the primary local option for routine and complex mechanical repairs.

1000 Frontage Rd W, Stewartville, MN 55976

Specialties & Features

EcoTec engine diagnostics
General transmission service
4WD and suspension work

Business Information

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

Lou's Rochester Transmission & Performance

4.8
(250 reviews)
Verified

A Rochester-based specialist with a stellar reputation for transmission work and performance tuning. They are the go-to regional expert for the complex Allison transmissions found in GMC HD trucks and are highly proficient with the newer 10-speed models. Their team also has deep expertise in Duramax diesel performance and repair, making them a top-tier choice for powertrain-specific issues.

1819 Broadway Ave N, Rochester, MN 55906

Specialties & Features

Allison
10-speed transmission repair
Duramax diesel service
Performance and towing upgrades

Business Information

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

Certified Auto Specialists

4.9
(180 reviews)
Verified

An ASE Blue Seal Certified shop in Rochester known for its technical excellence and high-end diagnostic capabilities. They are particularly adept at handling the sophisticated electronics and luxury features of GMC Denali models, as well as complex electrical diagnostics for all modern GMC vehicles. They provide comprehensive service from routine maintenance to advanced engine and drivetrain repair.

2215 Superior Dr NW, Rochester, MN 55901

Specialties & Features

Denali electronics
diagnostics
EcoTec
Duramax engine service
Heavy-duty suspension

Business Information

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

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

The GMC repair market in Stewartville itself is limited, characterized by a single primary, reputable full-service shop (Stewartville Auto Service) that handles general GMC needs competently. For routine maintenance and common repairs, this local provider offers convenience and trusted service. However, for the highly specialized services requested—particularly Duramax diesel repair, Allison transmission overhaul, and Denali electronics—residents of Stewartville consistently look to the neighboring city of Rochester. Rochester, being a major medical hub, has a more competitive and sophisticated automotive repair market. This drives higher average quality and specialization. Shops like Lou's and Certified Auto Specialists compete on expertise and advanced technology, not just price. Typical pricing reflects this specialization; a complex diesel injection repair or transmission rebuild will command premium rates, while standard maintenance (oil changes, brake service) is competitively priced with the Stewartville market. The overall ecosystem is healthy, with clear pathways for owners of both light-duty and heavy-duty GMC vehicles to find appropriate expert care.

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 Stewartville regulations and climate