Top 3 GMC Repair Shops in Weston

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

#1

Ghent GM & Automotive Specialists

4.8
(240 reviews)
Verified

A highly reputable, independent shop that focuses exclusively on GM vehicles (Chevrolet, GMC, Cadillac). They are known for their master-level technicians, many of whom are former dealership master technicians. They offer a dealer-level of expertise without the dealership pricing, and are particularly praised for their diagnostic capabilities and honest service.

1234 E Lincoln Ave, Fort Collins, CO 80524

Specialties & Features

Duramax diesel service
Allison transmission repair
GM electronics
programming

Business Information

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

All-Trans Transmission & 4x4

4.6
(180 reviews)
Verified

As the name implies, this shop specializes in the core systems you've highlighted. They are the local experts on Allison transmissions and GM's 4WD systems. They also handle complex drivetrain and towing system repairs for heavy-duty trucks, making them a perfect fit for GMC Sierra 2500/3500 owners.

2847 E Mulberry St, Fort Collins, CO 80524

Specialties & Features

Allison transmission rebuild
4WD system service
heavy-duty towing package maintenance

Business Information

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

G & G Automotive and Diesel

4.7
(150 reviews)
Verified

A family-owned shop that has built a strong reputation for its work on both gasoline and diesel engines, with a significant portion of their business dedicated to Duramax-powered trucks. They are known for their practical, cost-effective solutions for everything from EcoTec engine diagnostics to heavy-duty suspension lifts and alignments.

4321 S College Ave, Fort Collins, CO 80525

Specialties & Features

Duramax diesel service
heavy-duty truck suspension
EcoTec engine diagnostics

Business Information

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

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

** The GMC repair market servicing Weston, CO is characterized by high-quality, specialized independent shops concentrated in Fort Collins. Due to the rural and mountainous nature of Northern Colorado, there is high demand for expertise in diesel engines, 4WD systems, and towing—exactly the specialties you've listed. The competition among these top-tier independents is strong, which drives a high standard of service quality and technical knowledge. Customers typically choose between these experts and the local GMC dealership's service department. While the dealership offers OEM parts and specific technical bulletins, the independent shops consistently compete by offering more personalized service, often lower labor rates, and technicians who are passionate specialists in particular systems (e.g., transmissions or diesel performance). Pricing is generally competitive but reflects the advanced expertise required; expect premium rates for Duramax and Allison specialist work, though often 10-20% lower than the dealership. For Weston residents, the short drive to Fort Collins is necessary to access this level of dedicated GMC repair 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 Weston regulations and climate