The Best GMC Repair in Louisville, CO

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

#1

A-1 Auto & Transmission Service

4.8
(280 reviews)
Verified

A-1 Auto is a highly respected, family-owned shop in neighboring Lafayette, renowned for its deep expertise in complex transmission and engine diagnostics. They are a top-tier choice for GMC owners, particularly for Duramax and Allison transmission service, which they frequently highlight in their service offerings. Their technicians have extensive experience with domestic trucks and their advanced systems.

110 E South Boulder Rd, Lafayette, CO 80026

Specialties & Features

Allison transmission repair
Duramax diesel service
EcoTec engine diagnostics

Business Information

Years in Business:25 years
Licensed:Yes
Insured:Yes
#2

Complete Automotive

4.7
(190 reviews)
Verified

Located in the heart of Louisville, Complete Automotive is the most convenient and highly-rated local option. While not exclusively a truck specialist, they have built a strong reputation for servicing a wide range of vehicles, including GMC trucks and SUVs. Customer reviews consistently praise their honesty, diagnostic capabilities, and expertise in handling 4WD systems, suspension issues, and general engine work on domestic brands.

339 S Pierce Ave, Louisville, CO 80027

Specialties & Features

4WD and towing system service
EcoTec engine diagnostics
General GMC maintenance

Business Information

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

B & B Auto & Diesel Repair

4.6
(120 reviews)
Verified

B & B Auto, located in Lafayette, specifically markets itself as a diesel and gas repair specialist, making it a prime candidate for GMC Denali and heavy-duty owners. They have proven expertise in Duramax engine service, including performance and maintenance, as well as general repair on all GMC models. Their focus on both diesel and electronic systems makes them a strong choice for modern, feature-rich GMC vehicles.

1100 Delaware Ave, Unit D, Lafayette, CO 80026

Specialties & Features

Duramax diesel service
Heavy-duty truck suspension
Denali electronics and diagnostics

Business Information

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

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

** The GMC repair market in and around Louisville, Colorado, is characterized by high-quality, independent shops rather than a high volume of options. The market is not saturated, but the competition is fierce on the basis of reputation and technical expertise. Louisville residents are discerning and value quality and reliability, which has fostered a environment of highly competent, trustworthy auto service providers. Due to Louisville's size, residents commonly rely on the more industrial and commercial neighboring city of Lafayette for specialized services, particularly for diesel and transmission work. The average quality of service is very high, as evidenced by the consistently excellent reviews of the top shops. Pricing is typical for the Boulder County region, which is at a premium compared to national averages, reflecting the high cost of living, skilled labor, and the technical complexity of servicing modern GMC trucks and SUVs. For major diesel or transmission work, customers should expect higher labor rates and parts costs, but the expertise available locally mitigates the risk and cost of misdiagnosis or improper repair.

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 Louisville regulations and climate