Top 3 GMC Repair Shops in Key Largo

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

#1

The Auto Shop of Key Largo

4.8
(280 reviews)
Verified

Consistently ranked as the top-rated general automotive repair shop in the Upper Keys. They are known for their technical expertise, honest diagnostics, and high customer satisfaction. They frequently work on domestic trucks and SUVs, making them a prime choice for GMC owners seeking reliable service for complex systems.

105400 Overseas Hwy, Key Largo, FL 33037

Specialties & Features

EcoTec engine diagnostics
Allison transmission service
4WD and towing system service

Business Information

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

A1A Automotive & Tire

4.6
(190 reviews)
Verified

A well-established and trusted name with a strong focus on comprehensive automotive care. They have the equipment and technician expertise to handle everything from routine maintenance on Denali models to more complex powertrain and suspension issues on heavy-duty Sierra models.

101370 Overseas Hwy, Key Largo, FL 33037

Specialties & Features

Heavy-duty truck suspension
Duramax diesel service
towing package maintenance

Business Information

Years in Business:20 years
Licensed:Yes
Insured:Yes
#3

Monroe County Transmission & Auto Repair

4.5
(120 reviews)
Verified

As the name suggests, this provider offers specialized transmission expertise, which is critical for GMC's Allison and modern 10-speed units. Their general auto repair services extend to the full spectrum of GMC needs, making them a strong specialist for drivetrain and powertrain issues.

30 Del Oro Ave, Key Largo, FL 33037

Specialties & Features

Allison transmission repair
10-speed transmission service
general engine diagnostics

Business Information

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

Why These Are the Top GMC Repair Auto Repair Shops in Key Largo

** The GMC repair market in Key Largo is characterized by a handful of high-quality, independent shops rather than a high volume of specialized dealers or chain stores. The closest GMC dealerships are in Homestead or further north on the mainland, making these local independents the most convenient and often more personalized option for residents and travelers. **Average Quality:** The quality of service is generally high, with top shops boasting significant longevity and technician experience. The demanding environment of the Florida Keys, with salt air and long highway drives, means these shops are accustomed to dealing with corrosion and vehicles used for towing boats and RVs. **Competition Level:** Competition is moderate but reputation-driven. In a small community, word-of-mouth and long-term customer relationships are paramount. The shops listed have sustained their businesses by building trust and demonstrating consistent competence with complex vehicle systems. **Typical Pricing:** Pricing is competitive with South Florida averages. Labor rates are typically in the **$125 - $165 per hour** range. Given the specialized nature of your requested services (Duramax, Allison, 4WD), jobs will be at the higher end of the cost spectrum due to the technical expertise, diagnostic time, and specialized parts/tools required. It is always recommended to request a detailed estimate upfront.

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 Key Largo regulations and climate