Top 3 GMC Repair Shops in Washington

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

#1

S & S Diesel & Auto Repair, Inc.

4.8
(180 reviews)
Verified

A highly reputable and specialized shop known for its deep expertise in diesel performance and repair. They are a go-to for complex Duramax diagnostics, performance upgrades, and transmission work. Their technicians are known for tackling problems other shops can't solve, making them a top choice for serious GHD owners.

7401 N University St, Peoria, IL 61615

Specialties & Features

Duramax diesel service
Allison transmission repair
Heavy-duty performance tuning

Business Information

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

Green Chevrolet Service Department

4.5
(250 reviews)
Verified

As the local GMC/Cadillac dealer, Green Chevrolet has direct access to GM-specific tools, training, and original parts. Their service department is the best option for warranty work, complex electronics, and factory-specified repairs on Denali models and newer vehicles with advanced towing systems.

2001 Peoria St, Washington, IL 61571

Specialties & Features

Denali luxury/electronics
Factory towing package maintenance
GMC factory-certified technicians

Business Information

Years in Business:50 years
Licensed:Yes
Insured:Yes
#3

A-1 Auto & Truck Repair

4.7
(90 reviews)
Verified

A well-established, family-owned shop with a strong reputation for honest and comprehensive service. They excel in general GMC maintenance and repair, with specific strengths in suspension work, 4WD system service, and EcoTec engine diagnostics for smaller GMC models like the Terrain and Acadia.

101 Walnut St, Washington, IL 61571

Specialties & Features

4WD and suspension service
EcoTec engine diagnostics
General GMC maintenance

Business Information

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

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

** The GMC repair market in the Washington, IL area is characterized by a mix of a single, long-standing dealership and several highly competent independent shops located in the surrounding Peoria area. For routine maintenance and general repairs on GMC vehicles, Washington residents have good local options like A-1 Auto. However, for specialized diesel (Duramax) or heavy-duty transmission (Allison) work, the market necessitates traveling to Peoria, where specialists like S & S Diesel operate. **Competition Level:** Moderate. While there are several general auto repair shops, true GMC and diesel specialists are limited, creating high demand for the top-tier providers. **Average Quality:** The quality is bifurcated. General repair shops are competent, but the specialist shops are exceptional, commanding higher prices for their expertise. **Typical Pricing:** Pricing is competitive. Dealerships (Green Chevrolet) typically command the highest labor rates. Specialists like S & S Diesel also have premium pricing, justified by their niche expertise. Independent shops like A-1 Auto offer more moderate rates for non-specialized services.

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 Washington regulations and climate