The Best GMC Repair in Mason, IL

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

#1

B & H Diesel Service & Repair

4.8
(180 reviews)
Verified

A highly specialized and reputable shop focused exclusively on diesel engine and transmission systems. They are the go-to experts in the region for complex Duramax diagnostics, performance issues, and Allison transmission rebuilds. Their technicians have deep, manufacturer-level knowledge which is reflected in their exceptional customer satisfaction ratings for heavy-duty truck service.

1501 W. Fayette Ave, Effingham, IL 62401 (Serves Mason, IL)

Specialties & Features

Duramax diesel service
Allison transmission repair
Heavy-duty truck diagnostics

Business Information

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

D & S Automotive

4.6
(220 reviews)
Verified

A well-established full-service shop known for its broad expertise and reliability. They handle everything from routine maintenance on EcoTec engines to complex 4WD system repairs and towing package installations. They are a trusted name for GMC owners who need a one-stop shop for both mechanical and electronic issues, including those on Denali trim levels.

1200 N. Keller Dr, Effingham, IL 62401 (Serves Mason, IL)

Specialties & Features

4WD and towing system service
EcoTec engine diagnostics
General GMC repair
maintenance

Business Information

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

Timmermann Enterprises Inc.

4.4
(90 reviews)
Verified

A family-owned business with a strong local reputation for honesty and quality workmanship. They specialize in suspension and chassis work, making them an excellent choice for GMC owners with heavy-duty trucks used for towing or hauling. They also perform comprehensive diagnostics and general repair, with many long-term customers trusting them with their vehicles.

120 N. Delmar Ave, Mason, IL 62443

Specialties & Features

Heavy-duty truck suspension
Towing package maintenance
General truck service

Business Information

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

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

** The GMC repair market serving Mason, Illinois is characterized by high specialization and reliance on nearby Effingham's more robust commercial infrastructure. Due to Mason's small size, there are no dealerships within the village itself. The market is not saturated, but the quality of available service is generally high, with several long-standing, family-owned businesses building their reputation on trust and expertise. * **Average Quality:** The average quality of independent shops is good to excellent, with a focus on skilled technicians rather than high-volume throughput. Customers often report personalized service. * **Competition Level:** Moderate. While there aren't dozens of options, the existing shops compete on reputation, specific expertise (e.g., diesel vs. general repair), and customer service rather than price alone. * **Typical Pricing:** Pricing is competitive with regional averages. Labor rates are typically lower than at a metropolitan dealership. Specialized services like Duramax injector replacement or Allison transmission overhaul command premium pricing due to the required expertise and parts cost, but are still generally more cost-effective than a dealer. For standard maintenance and repairs, pricing is considered fair and transparent by local customers.

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 Mason regulations and climate