The Best GMC Repair in Tavernier, FL

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

#1

The Diesel Shop of the Keys

4.8
(187 reviews)
Verified

Widely regarded as the premier diesel specialist in the Upper Keys. They focus exclusively on diesel powertrains, making them the top choice for complex Duramax diagnostics, performance issues, and repair. Their technicians have deep, manufacturer-specific training and are equipped to handle everything from routine maintenance to major engine overhauls.

88999 Overseas Hwy, Tavernier, FL 33070

Specialties & Features

Duramax diesel service
Allison transmission repair
Heavy-duty truck suspension

Business Information

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

Upper Keys Auto & Truck Repair

4.6
(214 reviews)
Verified

A highly reputable full-service shop known for its broad expertise with American trucks and SUVs. They are a trusted alternative to the dealership for general GMC maintenance and more complex repairs. They receive consistent praise for their honest diagnostics, quality workmanship, and expertise with 4WD systems and the smaller-displacement EcoTec engines found in models like the Terrain and Canyon.

91800 Overseas Hwy, Tavernier, FL 33070

Specialties & Features

EcoTec engine diagnostics
4WD and towing system service
Transmission repair

Business Information

Years in Business:18 years
Licensed:Yes
Insured:Yes
#3

Certified Auto Repair of the Keys

4.7
(162 reviews)
Verified

While serving all makes and models, this shop has built a strong reputation for its technical proficiency with modern vehicle electronics and luxury features, making them an excellent choice for GMC Denali owners. They are particularly adept at diagnosing and repairing complex electrical issues, infotainment systems, and advanced driver-assistance features that are common in high-trim GMCs.

79801 Overseas Hwy, Islamorada, FL 33036 (Serves the Tavernier area)

Specialties & Features

Denali luxury features and electronics
Towing package maintenance
General GMC diagnostics

Business Information

Years in Business:9 years
Licensed:Yes
Insured:Yes

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

** The GMC repair market in Tavernier is characterized by a small number of highly specialized, independent shops that fill the void left by the absence of a local GMC dealership. The quality of service is generally high, as these businesses survive on reputation and word-of-mouth in a tight-knit community. Competition is moderate but specialized; shops tend to have their own niches (e.g., one for diesel, another for general mechanical work, a third for electronics). Pricing is typically at a premium compared to mainland Florida, reflecting the "island economy," higher operational costs, and the specialized knowledge required to service the complex, often heavy-duty vehicles common in the Keys. Customers should expect labor rates in the $130-$170/hour range. For major work like Duramax or Allison transmission service, obtaining multiple quotes is advised, though the expertise of a specialist like The Diesel Shop often justifies their premium rate for such critical systems.

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 Tavernier regulations and climate