Top 3 GMC Repair Shops in Mazon

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

#1

Mazon Repair Inc.

4.7
(110 reviews)
Verified

A long-standing, family-owned full-service garage and the primary automotive service provider within Mazon itself. While not a dedicated GMC dealer, they have deep roots in the community and are known for honest diagnostics and reliable work on domestic trucks, including GMC. They handle everything from routine maintenance to complex engine and transmission work, often sourcing specialized parts as needed.

305 E. Santa Fe St., Mazon, IL 60444

Specialties & Features

EcoTec engine diagnostics
Allison transmission repair
general towing package maintenance

Business Information

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

Morris Auto & Truck Repair

4.8
(280 reviews)
Verified

Located just a short drive from Mazon in Morris, this shop has built a stellar reputation for its expertise in diesel engines and heavy-duty truck systems. They are a top-tier independent shop equipped with advanced diagnostic tools specifically for modern GM trucks. Their technicians have direct experience with Duramax engines, Allison transmissions, and the complex 4WD systems found in GMC Sierra and Denali models.

1901 N. Division St., Morris, IL 60450

Specialties & Features

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

Business Information

Years in Business:15 years
Licensed:Yes
Insured:Yes
#3

Ottawa AutoTech

4.6
(190 reviews)
Verified

Serving the broader Grundy County area from Ottawa, this provider is known for its technical proficiency with modern vehicle electronics and luxury features. They are an excellent choice for diagnosing and repairing issues specific to GMC Denali trim levels, including infotainment systems, advanced driver-assistance features, and electrical gremlins. They also perform comprehensive transmission services and engine diagnostics.

1920 N. Columbus St., Ottawa, IL 61350

Specialties & Features

Denali luxury features and electronics
10-speed transmission repair
EcoTec engine diagnostics

Business Information

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

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

** The GMC repair market in Mazon itself is limited, reflecting its small population. The single local provider, **Mazon Repair Inc.**, offers essential services and general expertise but may lack the highly specialized, proprietary tools and intensive training required for the most complex Duramax or Denali electronics issues. Consequently, GMC owners in Mazon typically look to the larger surrounding commercial hubs like **Morris** and **Ottawa** for specialized work. The competition level in these adjacent markets is moderate, with a handful of highly-rated independent shops competing with the nearest GMC dealerships, which are located further away in Joliet or Peru. This competition benefits consumers by ensuring high service quality and fair pricing. Typical pricing is competitive for the region; expect labor rates between $115-$150 per hour. Specialized diesel or transmission work will be at the higher end of this scale. For major repairs, these independent specialists often provide a cost-effective alternative to dealerships while maintaining a high standard of workmanship, as evidenced by their strong customer review profiles.

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 Mazon regulations and climate