The Best GMC Repair in Portsmouth, RI

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

#1

Portsmouth Auto & Truck Service

4.7
(180 reviews)
Verified

A long-standing, family-owned full-service shop known for its deep roots in the Portsmouth community. They are recognized for handling everything from routine GMC maintenance to complex diesel and transmission diagnostics. Their technicians have extensive experience with domestic trucks and SUVs, making them a top local choice for Sierra and Yukon owners.

2898 East Main Road, Portsmouth, RI 02871

Specialties & Features

EcoTec engine diagnostics
Allison transmission repair
towing package maintenance

Business Information

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

Newport Diesel & 4x4

4.8
(95 reviews)
Verified

While located just over the bridge in Newport, this specialist is the premier destination for GMC owners with heavy-duty needs. Their entire business model is built around diesel performance and 4WD systems. They are the go-to experts for Duramax engine service, complex emissions system repairs, and heavy-duty suspension work for trucks used for towing and hauling.

199 Connell Hwy, Newport, RI 02840

Specialties & Features

Duramax diesel service
4WD and towing system service
heavy-duty truck suspension

Business Information

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

The Auto Clinic of Middletown

4.6
(220 reviews)
Verified

A highly reputable and well-established shop in neighboring Middletown, known for its technical expertise and high customer satisfaction. They excel in modern vehicle diagnostics, including the complex electronics and infotainment systems found in GMC Denali models. Their team includes ASE-certified Master Technicians capable of handling the full spectrum of GMC repair.

1112 West Main Road, Middletown, RI 02842

Specialties & Features

Denali luxury features and electronics
transmission repair
EcoTec engine diagnostics

Business Information

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

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

** The GMC repair market in Portsmouth, RI, is characterized by high-quality, independent shops rather than a high volume of options. As a affluent coastal community with significant boating and recreational culture, there is strong demand for competent service of trucks and SUVs used for towing. The competition level is moderate; while there are several general auto repair shops, only a handful possess the specific expertise, specialized tools, and reputation for complex GMC systems like Duramax diesel and Allison transmissions. Customers are generally discerning and value long-term relationships with trustworthy mechanics. Typical pricing is in the upper-mid range, reflecting the high cost of living in the area and the technical skill required, with labor rates generally between $125-$165 per hour. For the most specialized diesel and transmission work, providers like Newport Diesel & 4x4 command a premium justified by their niche expertise.

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 Portsmouth regulations and climate