The Best GMC Repair in Newman Lake, WA

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

#1

Newman Lake Automotive & Diesel

4.8
(180 reviews)
Verified

A highly respected, family-owned shop known for its deep expertise in both domestic gasoline and diesel engines. They have built a strong reputation for honest diagnostics, particularly with complex GMC systems. Their technicians are ASE Certified, and they invest in high-level diagnostic tools for both engine and transmission computers.

21824 N Newport Hwy, Newman Lake, WA 99025

Specialties & Features

Duramax diesel service
Allison transmission repair
EcoTec engine diagnostics

Business Information

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

Inland Sales & Service

4.6
(270 reviews)
Verified

While not exclusively a repair shop, this facility is the authorized GMC dealership for the region. This grants them direct access to GM-specific training, tools, software, and original parts. They are the definitive source for warranty work, complex electronics, and luxury features on Denali models. Their service department includes Master Technicians certified by GM.

15315 E Indiana Ave, Spokane Valley, WA 99216

Specialties & Features

Denali luxury features and electronics
GMC towing package maintenance
heavy-duty truck suspension

Business Information

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

Certified Diesel Services of Spokane

4.7
(140 reviews)
Verified

As the name implies, this shop is a pure specialist focused exclusively on diesel powertrains and heavy-duty systems. They are the go-to experts for complex Duramax engine performance tuning, major repairs, and heavy-duty towing system diagnostics that go beyond basic maintenance. They are known for tackling jobs that general shops refuse.

1120 N. Freya Way, Spokane Valley, WA 99212

Specialties & Features

Duramax diesel performance and repair
heavy-duty towing system service
Allison transmission overhaul

Business Information

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

Why These Are the Top GMC Repair Auto Repair Shops in Newman Lake

** The GMC repair market serving Newman Lake is bifurcated into two main segments. The first consists of a small number of highly capable, independent local shops (like Newman Lake Automotive) that offer personalized service, deep community ties, and competitive pricing for a wide range of services. The second segment is comprised of larger, specialized facilities and the dealership in nearby Spokane Valley, which offer factory-backed expertise for more complex or warranty-related issues, typically at a premium. **Average Quality:** The quality is generally high, with several shops demonstrating excellent capabilities. The key differentiator is specialization. A owner of a GMC 2500HD Duramax would have a different "best" shop (Certified Diesel) than an owner of a Yukon Denali (Inland Sales & Service). **Competition Level:** Competition is moderate but specialized. There are many general auto repair shops, but only a handful possess the specific tooling, software, and certified expertise for advanced GMC systems like Duramax engines or Denali electronics. This allows the top specialists to maintain strong business without competing solely on price. **Typical Pricing:** Pricing is competitive with regional averages. Independent specialists typically charge $120-$150/hour for labor, while the dealership (Inland Sales & Service) is at the higher end, often $160-$180/hour. However, the higher dealer rate is offset for some jobs by guaranteed OEM parts and direct manufacturer technical support. Parts markup also varies, with independents often having more flexibility.

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 Newman Lake regulations and climate