The Best GMC Repair in Lebanon, CT

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

#1

Gengras Chevrolet GMC

4.3
(280 reviews)
Verified

As the closest GMC dealership, Gengras is the primary destination for factory-trained technicians, genuine GM parts, and complex warranty work. Their service department is equipped with the latest GM diagnostic tools and software, making them the top choice for advanced electronics, Denali luxury features, and new-model diagnostics.

1361 West Main Street, Newington, CT 06111

Specialties & Features

Duramax diesel service
Allison transmission repair
Denali electronics
features

Business Information

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

Norwich Transmissions & Auto Repair

4.7
(150 reviews)
Verified

A highly-regarded independent shop with a stellar reputation for transmission work and diesel service. They are a local favorite for heavy-duty truck owners, known for their deep technical knowledge, honest diagnostics, and ability to handle complex repairs on Duramax engines and Allison transmissions that other independents might shy away from.

401 W Thames St Unit 51, Norwich, CT 06360

Specialties & Features

Allison transmission repair
Duramax diesel service
4WD and towing system service

Business Information

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

Colchester Automotive

4.8
(90 reviews)
Verified

A top-tier independent shop known for its exceptional customer service and high-quality workmanship. While they service all makes and models, they have specific expertise with American trucks and SUVs. They are a trusted option for EcoTec engine diagnostics, routine maintenance, suspension work, and towing package services for GMC owners who prefer an independent, relationship-based service experience.

180 Old Hartford Rd, Colchester, CT 06415

Specialties & Features

EcoTec engine diagnostics
heavy-duty truck suspension
towing package maintenance

Business Information

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

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

** The GMC repair market serving Lebanon, Connecticut, is characterized by limited *in-town* options but features strong, high-quality providers within a 15-20 minute drive. As a rural community with significant agricultural and residential use of trucks, the demand for competent GMC and heavy-duty truck service is high. * **Average Quality:** The quality of service is generally high, with several shops boasting long-term reputations and expert-level certifications (ASE Master Technicians). The presence of a dedicated dealership (Gengras) sets a high bar for OEM-standard repairs. * **Competition Level:** Competition is moderate but specialized. The dealership competes with a handful of well-established independent shops in Norwich, Colchester, and Montville. These independents often compete on price, personalized service, and specific hard-to-find expertise (like transmission rebuilding). * **Typical Pricing:** Pricing follows a standard tiered structure. Dealership labor rates are at the premium end but offer factory-backed expertise and parts. Independent shops offer more competitive labor rates, typically 15-30% lower, while still providing high-quality service, making them an excellent value for out-of-warranty vehicles.

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 Lebanon regulations and climate