Top 3 GMC Repair Shops in Summerland Key

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

#1

The Truck Shop of the Keys

4.8
(180 reviews)
Verified

Widely recognized as the premier heavy-duty and diesel truck specialist in the Lower Keys. They have a dedicated focus on American pickup trucks, with deep expertise in GM platforms. Their technicians are proficient with advanced diagnostic tools specifically for Duramax and Allison systems. They are the go-to for complex issues that general mechanics won't touch.

3650 Roosevelt Blvd, Stock Island, FL 33040

Specialties & Features

Duramax diesel service
Allison transmission repair
heavy-duty suspension upgrades

Business Information

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

Marathon Gas & Auto Service

4.6
(250 reviews)
Verified

A long-standing, full-service automotive center trusted by locals and commercial fleets alike. While not an exclusive truck shop, they have a strong reputation for dependable engine and transmission work on GM vehicles. They are particularly noted for their honest diagnostics and ability to service the full spectrum of GMC models, from light-duty EcoTec engines to HD trucks with towing packages.

11499 Overseas Hwy, Marathon, FL 33050

Specialties & Features

EcoTec engine diagnostics
transmission service
towing package maintenance

Business Information

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

A&R Auto Repair & Tire

4.5
(90 reviews)
Verified

A well-regarded independent shop known for its technical competency and personalized service. They handle a wide range of repairs but have developed a niche in 4WD system service and electrical diagnostics, which is crucial for maintaining the integrity of GMC's 4WD and Denali electronic features. They are a reliable choice for ongoing maintenance and troubleshooting complex electronic issues.

10670 Overseas Hwy, Marathon, FL 33050

Specialties & Features

4WD and towing system service
Denali electronics
general GMC maintenance

Business Information

Years in Business:8 years
Licensed:Yes
Insured:Yes

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

The GMC repair market serving Summerland Key is characterized by a small number of highly specialized independent shops, as there is no dedicated GMC dealership in the Lower Keys. The nearest dealerships are in Homestead or Key Largo, requiring a significant drive for owners. This reality has fostered a strong local market for competent independent garages. * **Average Quality:** The quality of service is generally high, as these shops survive on reputation and word-of-mouth in a close-knit community. Shops that specialize in trucks and diesel systems (like The Truck Shop) offer a level of expertise that rivals dealerships. * **Competition Level:** Competition is moderate but specialized. There are several general auto repair shops, but only a handful have the specific tooling, software, and technician training for complex GMC systems like Duramax or Allison. This allows the specialists to command a premium. * **Typical Pricing:** Labor rates in the Florida Keys are typically higher than the national average, reflecting the cost of living and business operation. Expect to pay between **$130 - $175 per hour** for labor at a reputable specialist. Parts pricing is generally at market rate, but availability can sometimes lead to minor delays due to the geographic location.

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 Summerland Key regulations and climate