The Best GMC Repair in Mountlake Terrace, WA

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

#1

Terrace Auto Service

4.8
(180 reviews)
Verified

A long-standing, family-owned shop known for its high-level diagnostic capabilities and honest service. They have built a strong reputation for handling complex repairs on American-made trucks and SUVs, including the full range of GMC vehicles from older models to the latest Denali trims. Their technicians are continuously trained on the latest technologies.

6100 232nd St SW, Mountlake Terrace, WA 98043

Specialties & Features

Duramax diesel service
Allison transmission repair
EcoTec engine diagnostics

Business Information

Years in Business:20 years
Licensed:Yes
Insured:Yes
#2

Mountlake Terrace Diesel & Auto Repair

4.6
(120 reviews)
Verified

This shop has a clear and advertised focus on diesel powertrains, making them a primary destination for Duramax owners. They are equipped to handle everything from routine maintenance to major engine overhauls and performance upgrades. Their expertise extends to the heavy-duty chassis and towing systems that accompany these powerful engines.

22202 56th Ave W, Mountlake Terrace, WA 98043

Specialties & Features

Duramax diesel service
Heavy-duty truck suspension
Towing package maintenance

Business Information

Years in Business:12 years
Licensed:Yes
Insured:Yes
#3

Lakeside Auto Repair & Tire

4.7
(200 reviews)
Verified

While offering comprehensive general repair, Lakeside has developed a significant niche in servicing modern GMC SUVs and trucks. They receive consistent praise for their work on complex electrical and electronic systems, making them a strong choice for diagnosing issues with Denali luxury features, infotainment, and advanced driver-assistance systems.

22811 44th Ave W, Mountlake Terrace, WA 98043

Specialties & Features

Denali luxury features and electronics
4WD and towing system service
Transmission repair

Business Information

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

Why These Are the Top GMC Repair Auto Repair Shops in Mountlake Terrace

** The GMC repair market in Mountlake Terrace is characterized by a handful of highly competent, independent shops that successfully compete with the larger dealerships in nearby Lynnwood. The average quality is high, as these businesses have built their reputations on serving a knowledgeable and demanding clientele who own trucks and SUVs for work, towing, and family use. Competition is strong but specialized; shops tend to develop core competencies (e.g., one excels in diesel, another in electronics). This allows them to coexist by not being direct clones of one another. Typical pricing is in the upper-mid range, reflecting the higher labor rates of the Seattle metro area and the technical complexity of modern GMCs. However, labor rates are generally 20-30% lower than at a dealership, providing significant value. Customers can expect to pay a premium for diesel-specific work and advanced electronic diagnostics, but the overall value proposition from these top-tier independents is excellent, combining dealer-level expertise with personalized service and more competitive pricing.

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 Mountlake Terrace regulations and climate