The Best GMC Repair in Mashantucket, CT

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

#1

New London County Automotive

4.7
(280 reviews)
Verified

A highly reputable, family-owned service center known for its technical expertise with American trucks and SUVs. They have multiple ASE and GM-trained technicians on staff and are equipped with advanced diagnostic tools specifically for modern GMC systems. They are a trusted name for complex diesel and transmission work.

12 Parkway St, New London, CT 06320

Specialties & Features

Duramax diesel service
Allison transmission repair
Heavy-duty truck suspension

Business Information

Years in Business:18 years
Licensed:Yes
Insured:Yes
#2

Foxwoods Auto Service & Repair

4.5
(120 reviews)
Verified

Located conveniently close to the Mashantucket Pequot reservation, this shop has built a strong reputation for serving the local community and casino employees. They offer comprehensive service on a wide range of vehicles, with a noted specialty in the electronics and luxury features found in Denali models, as well as routine towing package maintenance.

2259 Norwich-New London Tpke, Uncasville, CT 06382

Specialties & Features

Denali luxury features and electronics
Towing package maintenance
EcoTec engine diagnostics

Business Information

Years in Business:12 years
Licensed:Yes
Insured:Yes
#3

Mack's Twin Tire & Auto Service

4.4
(190 reviews)
Verified

While known for tires, their auto service division has deep expertise in 4WD systems and truck suspensions, making them a go-to for GMC Sierra and Yukon owners, especially those who use their vehicles for towing or off-pavement use. They handle everything from suspension lifts and leveling kits to complex 4WD diagnostics and repair.

500 Long Hill Road, Groton, CT 06340

Specialties & Features

4WD and towing system service
Heavy-duty truck suspension
Allison transmission repair

Business Information

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

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

** The GMC repair market servicing Mashantucket is characterized by a handful of high-quality, independent shops in the surrounding towns of New London, Groton, and Uncasville, rather than a high concentration of dealers or specialists within the tribal land itself. The competition is moderate but specialized; shops that succeed have typically done so by cultivating expertise in specific areas like diesel engines or truck systems, as general mechanics are less equipped to handle the complexities of modern GMCs. The average quality of these top-tier independent shops is very high, often rivaling or exceeding the dealer experience in terms of personalized service and cost. Pricing is competitive for the region, with labor rates typically 15-20% lower than a metropolitan-area dealership. Customers appear to highly value technical competency, transparency, and the ability to work on heavy-duty and luxury vehicle systems, which the providers listed above have consistently demonstrated.

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 Mashantucket regulations and climate