The Best GMC Repair in Tiller, OR

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

#1

All Transmission & Diesel Service

4.8
(187 reviews)
Verified

A highly specialized and well-regarded shop focusing exclusively on the complex systems most critical to GMC HD trucks. They are the go-to experts in the region for Duramax and Allison diagnostics, repair, and performance tuning. Known for deep technical knowledge and solving problems that general mechanics cannot.

450 Old Highway 99 N, Roseburg, OR 97470

Specialties & Features

Duramax diesel service
Allison transmission rebuild
repair
Heavy-duty towing system diagnostics

Business Information

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

Roseburg GMC

4.5
(285 reviews)
Verified

The authorized GMC dealership for the region. This is the primary source for factory-trained technicians, genuine GM parts, and specialized diagnostic software for all models, including Denali trim levels with complex electronics and the latest 10-speed transmissions. Best for warranty work and manufacturer-recommended services.

2300 NW Aviation Dr, Roseburg, OR 97470

Specialties & Features

GMC factory diagnostics
Denali luxury features
electronics
EcoTec3/ECOTEC3 engine service

Business Information

Years in Business:25 years
Licensed:Yes
Insured:Yes
#3

Canyonville Repair & Diesel

4.6
(124 reviews)
Verified

A full-service, family-owned shop located closest to Tiller. They have built a strong reputation for dependable work on domestic trucks, with specific expertise in suspension lifts, 4WD system service, and general diesel maintenance. A reliable local alternative for routine and heavy-duty repairs.

450 Main St, Canyonville, OR 97417

Specialties & Features

4WD system service
Heavy-duty truck suspension
Diesel
gas engine maintenance

Business Information

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

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

** The GMC repair market serving Tiller, Oregon, is characterized by a need for residents to travel to neighboring towns for specialized service. There are no dedicated GMC specialists within Tiller itself. The market in the greater Roseburg/Canyonville area is moderately competitive, with a clear distinction between the authorized dealership (**Roseburg GMC**) and highly capable independent specialists (**All Transmission & Diesel Service, Canyonville Repair & Diesel**). The average quality of service for GMC-specific needs is high, as the local economy is heavily reliant on trucks for forestry, farming, and recreation, creating a demand for skilled technicians. Pricing is tiered: the dealership typically commands a premium for OEM parts and manufacturer-specific expertise, while the independents offer competitive rates for complex drivetrain and chassis work. For a Tiller resident, the choice often comes down to the nature of the repair: the dealership for electronics and warranty, or a specialist for powertrain and performance.

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 Tiller regulations and climate