Top 3 GMC Repair Shops in Maple Valley

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

#1

The GMC & Chevy Truck Shop (Covington)

4.8
(240 reviews)
Verified

A dedicated GM truck and SUV specialist known for its deep technical expertise, particularly with Duramax diesel engines and Allison transmissions. They are the preferred independent shop for local owners of heavy-duty Sierras, Yukon XLs, and Canyon/Colorado trucks, offering dealer-level diagnostics without the dealer price.

16855 SE 272nd St, Covington, WA 98042

Specialties & Features

Duramax diesel service
Allison transmission repair
Heavy-duty truck suspension

Business Information

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

Glenn's Auto Repair & Fleet Service

4.7
(180 reviews)
Verified

A long-standing, family-owned shop in nearby Black Diamond with a strong reputation for honesty and comprehensive service. While not exclusively GM, they have master technicians with extensive experience on GM platforms, including EcoTec engine diagnostics, 4WD systems, and towing package maintenance for the popular GMC SUVs and half-ton trucks.

24414 Roberts Dr, Black Diamond, WA 98010

Specialties & Features

EcoTec engine diagnostics
4WD and towing system service
General maintenance and repair

Business Information

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

JT's Auto Repair & Diesel

4.6
(90 reviews)
Verified

Located within Maple Valley, this is the most convenient local option with a growing reputation for handling both gasoline and diesel powertrains. They specifically advertise service for Duramax-equipped vehicles and are well-reviewed for their work on transmission services and general GMC truck repair, making them a solid choice for routine and intermediate-level specialized work.

22225 SE 231st St, Maple Valley, WA 98038

Specialties & Features

Diesel engine service
Transmission repair
General GMC truck maintenance

Business Information

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

Why These Are the Top GMC Repair Auto Repair Shops in Maple Valley

** The GMC repair market in and around Maple Valley is characterized by high demand due to the area's affinity for trucks and SUVs for personal, recreational, and light commercial use. The market quality is above average, with several competent general repair shops. However, true *specialists* for complex systems like Duramax diesel or Allison transmissions are limited, creating a niche for the top providers. **Competition Level:** Moderate to High for general repair, but Low for high-level specialization. The "The GMC & Chevy Truck Shop" has a near-monopoly on dedicated, advanced GM powertrain work in the immediate area, which is why they command such a strong reputation. **Typical Pricing:** Labor rates are competitive but not inexpensive, typically ranging from **$130 - $165 per hour**. This reflects the higher technical skill required and the specialized diagnostic equipment needed for modern GMC vehicles, especially those with Denali electronics and diesel engines. Customers can expect to pay a premium for true expertise on complex systems, but this is offset by significantly lower costs compared to dealership service departments.

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 Maple Valley regulations and climate