The Best GMC Repair in Percival, IA

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

#1

Denny's Repair & Diesel Service

4.7
(120 reviews)
Verified

A highly reputable, family-owned shop known for its deep expertise in diesel engines and heavy-duty truck systems. They are the go-to specialists in the area for complex Duramax diagnostics and performance tuning, as well as robust Allison transmission rebuilds. Their technicians have extensive experience with the demanding needs of local farmers and heavy haulers.

1402 Illinois St, Sidney, IA 51652

Specialties & Features

Duramax diesel service
Allison transmission repair
Heavy-duty truck suspension

Business Information

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

Hamburg Auto & Truck Repair

4.4
(90 reviews)
Verified

A full-service shop with a strong focus on both domestic trucks and modern automotive electronics. They are well-regarded for their diagnostic capabilities, making them a solid choice for troubleshooting EcoTec engine issues and the complex infotainment/electrical systems found in GMC Denali models.

1702 Main St, Hamburg, IA 51640

Specialties & Features

EcoTec engine diagnostics
Denali luxury features and electronics
General drivetrain service

Business Information

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

S & S Tire & Auto Service

4.3
(70 reviews)
Verified

While known for tires, this established local business has built a strong reputation for comprehensive undercarriage and drivetrain work. They are a reliable choice for routine and repair services related to 4WD systems, towing package maintenance (including hitch installation and brake controller wiring), and suspension work on GMC SUVs and light-duty trucks.

704 Illinois St, Sidney, IA 51652

Specialties & Features

4WD and towing system service
Towing package maintenance
Suspension and alignment

Business Information

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

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

** The GMC repair market serving Percival, Iowa, is characterized by a small number of highly capable, independent shops rather than dedicated dealerships or large chains. The closest GMC dealerships are located in Omaha, NE, or St. Joseph, MO, creating a strong local reliance on these independent specialists. The average quality of service is high, as these businesses survive on community reputation and technical competence. Competition is moderate but professional; each shop has developed its own niche (e.g., Denny's for diesel, Hamburg Auto for electronics). Pricing is generally considered fair and competitive, often lower than dealership rates, but premium expertise (especially for Duramax and Allison systems) commands a premium price. Customers benefit from personalized service and deep local knowledge, particularly regarding vehicles used for agriculture and towing in the rural landscape.

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 Percival regulations and climate