The Best GMC Repair in Broad Brook, CT

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

#1

J & M Transmission & Auto Care

4.8
(180 reviews)
Verified

A family-owned and operated business with a stellar reputation for complex transmission work, particularly on Allison units found in GMC trucks and SUVs. They have expanded their services to become a full-service auto care center with specific expertise in diesel engine service and 4WD systems, making them a top-tier choice for Duramax owners.

80 Rye Street, Broad Brook, CT 06016

Specialties & Features

Allison transmission repair
Duramax diesel service
4WD system service

Business Information

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

The Auto Shop, LLC

4.7
(250 reviews)
Verified

Known for their advanced diagnostics and high-quality workmanship on both domestic and import vehicles. They have multiple ASE Master Technicians on staff and have built a strong reputation for tackling complex electrical and electronic issues, making them an excellent choice for diagnosing and repairing Denali luxury features, infotainment systems, and towing package electronics.

48 Sullivan Ave, South Windsor, CT 06074 (Approx. 6 miles from Broad Brook)

Specialties & Features

Denali electronics diagnostics
EcoTec engine service
towing package maintenance

Business Information

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

Supreme Automotive Repair

4.6
(140 reviews)
Verified

Supreme Automotive has a long-standing presence in the community and is highly regarded for its honest service and expertise in suspension and chassis work. They are a go-to shop for heavy-duty truck owners needing suspension upgrades, leveling kits, or repairs related to towing and hauling. Their technicians are well-versed in the full range of GMC models.

135 Spring Street, Windsor Locks, CT 06096 (Approx. 8 miles from Broad Brook)

Specialties & Features

Heavy-duty truck suspension
general GMC repair
towing system service

Business Information

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

Why These Are the Top GMC Repair Auto Repair Shops in Broad Brook

** The GMC repair market serving Broad Brook, CT, is characterized by a handful of highly specialized, independent shops in the surrounding area rather than a high volume of competition. There is no dedicated GMC dealership in Broad Brook itself, which shifts demand toward these reputable independents. The average quality of service is high, as these businesses compete on expertise and customer service rather than price alone. Shops with specific certifications (ASE, etc.) and demonstrable experience with complex GMC systems (Duramax, Allison, Denali electronics) can command a premium. Typical pricing for specialized labor in this market ranges from **$125 - $175 per hour**. Diesel and transmission work is at the higher end of this scale. The market is not saturated, allowing established businesses with strong reputations to maintain consistent demand. Customers are typically well-informed and seek out specialists for their significant investments in trucks and SUVs, valuing technical proficiency and transparency over the lowest cost.

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 Broad Brook regulations and climate