The Best GMC Repair in Snohomish, WA

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

#1

Snohomish Diesel & Drivetrain

4.8
(180 reviews)
Verified

A highly specialized shop focused exclusively on diesel and drivetrain systems. They are the local go-to for complex Duramax and Allison transmission work, particularly for heavy-duty GMC Sierra 2500/3500 trucks. Known for their technical depth, use of advanced diagnostics, and quality workmanship.

1321 Lincoln Ave, Snohomish, WA 98290

Specialties & Features

Duramax diesel service
Allison transmission repair
Heavy-duty truck suspension

Business Information

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

Gee Automotive Family - Snohomish

4.5
(250 reviews)
Verified

Part of a reputable local family of dealerships, this service center offers factory-trained expertise specifically for GMC vehicles. They are the best-equipped for diagnosing and repairing complex Denali electronics, infotainment systems, and factory towing packages using the latest GM tools and software.

1011 First St, Snohomish, WA 98290

Specialties & Features

Denali luxury features and electronics
Towing package maintenance
EcoTec engine diagnostics

Business Information

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

Gary's Automotive & Transmission

4.6
(140 reviews)
Verified

A well-established, independent shop known for its honest service and broad mechanical expertise. While not exclusively a diesel shop, they have extensive experience with GMC trucks, including transmission services (Allison and 10-speed), 4WD system maintenance, and general engine diagnostics for both EcoTec and older Vortec engines.

911 Ave D, Snohomish, WA 98290

Specialties & Features

Transmission repair (Allison
10-speed)
4WD and towing system 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 Snohomish

The GMC repair market in Snohomish is characterized by a mix of specialized independent shops and established dealership service centers. The overall quality is high, reflecting the community's reliance on trucks and SUVs for both personal and commercial use. Competition is strong, pushing providers to maintain high standards of service. There is a clear distinction between general auto repair shops and true specialists, particularly for complex systems like Duramax diesel and Allison transmissions. **Typical Pricing:** Pricing is competitive but leans toward the premium end due to the technical expertise required. Dealerships (like Gee Automotive) typically command the highest labor rates ($165-$185/hr), followed by specialized independents like Snohomish Diesel & Drivetrain ($145-$165/hr). General independents like Gary's offer more moderate rates ($125-$145/hr). For major services like a Duramax injector replacement or an Allison transmission rebuild, customers should expect estimates starting from $3,500 and going significantly higher, depending on the vehicle and parts required.

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 Snohomish regulations and climate