Top 3 GMC Repair Shops in Westfall

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

#1

G & M Truck and Auto Repair

4.7
(180 reviews)
Verified

A highly reputable, family-owned shop known for its deep expertise in diesel engines and heavy-duty truck systems. They are a go-to for complex diagnostics and major repairs on Duramax-powered vehicles and Allison transmissions, serving both agricultural and personal-use customers in the region.

1555 SW 4th Ave, Ontario, OR 97914

Specialties & Features

Duramax diesel service
Allison transmission repair
Heavy-duty truck suspension

Business Information

Years in Business:12 years
Licensed:Yes
Insured:Yes
#2

Ontario Truck Center

4.5
(95 reviews)
Verified

While also offering sales, their dedicated service department has a strong focus on late-model GM trucks, including Denali trims. They are well-equipped to handle advanced electronics, towing system programming, and factory-spec maintenance, making them ideal for customers wanting dealer-level expertise in an independent setting.

260 Goodfellow St, Ontario, OR 97914

Specialties & Features

Denali luxury features and electronics
Towing package maintenance
EcoTec engine diagnostics

Business Information

Years in Business:8 years
Licensed:Yes
Insured:Yes
#3

J & H Automotive & Diesel

4.3
(120 reviews)
Verified

A versatile and established shop that provides a wide range of services from general auto repair to specialized diesel work. They are praised for their honest diagnostics and effectiveness in handling 4WD system service and routine maintenance for trucks used for farming and towing in the local area.

435 SE 2nd St, Ontario, OR 97914

Specialties & Features

4WD and towing system service
Diesel engine service
General GMC maintenance

Business Information

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

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

** The GMC repair market serving Westfall, Oregon, is concentrated in Ontario, the closest commercial center. The market is characterized by a handful of highly specialized, independent shops that cater to a region dependent on heavy-duty trucks for agriculture, ranching, and transportation. Competition is moderate but specialized; there are many general mechanics, but only a few with the specific expertise, diagnostic equipment, and lift capacity for Duramax diesel and Allison transmission work. The average quality of these top-tier specialists is high, as they survive by building long-term trust in a close-knit community. Pricing is competitive but reflects the specialized nature of the work; expect labor rates 15-25% higher than for standard passenger cars, with diesel and transmission repairs constituting the highest cost services. Customers prioritize proven reliability and technical knowledge over the lowest price.

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 Westfall regulations and climate