Top 3 GMC Repair Shops in Mountain Home

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

#1

Stevinson Chevrolet GMC of Johnson City

4.5
(280 reviews)
Verified

As the premier GMC dealership in the region, Stevinson offers factory-trained technicians, genuine GM parts, and state-of-the-art diagnostic equipment. They are the top choice for warranty work, complex electronics, and maintaining factory specifications, especially for Denali models and newer vehicles with advanced technology.

3414 Bristol Hwy, Johnson City, TN 37601

Specialties & Features

Denali luxury/electronics
Duramax diesel service
Allison/10-speed transmission repair

Business Information

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

C & M Diesel & Auto Repair

4.7
(130 reviews)
Verified

A highly reputable independent shop known for its expertise in diesel performance and repair. They are the go-to specialists for Duramax owners needing anything from routine maintenance to major engine work and performance upgrades. They also have deep experience with the heavy-duty suspensions and towing systems on GMC Sierra HD models.

2912 W Market St, Johnson City, TN 37604

Specialties & Features

Duramax diesel service
heavy-duty suspension
towing package maintenance

Business Information

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

C & J Auto & Truck Repair

4.4
(90 reviews)
Verified

A well-established, family-oriented shop known for honest diagnostics and comprehensive service. They handle a wide range of repairs from EcoTec engine diagnostics on smaller GMC models to transmission service and 4WD system repairs on trucks and SUVs. They are praised for their personal service and technical competence.

2911 Oakland Ave, Johnson City, TN 37601

Specialties & Features

EcoTec engine diagnostics
4WD service
transmission repair

Business Information

Years in Business:18 years
Licensed:Yes
Insured:Yes

Why These Are the Top GMC Repair Auto Repair Shops in Mountain Home

** The GMC repair market serving Mountain Home, TN, is characterized by a reliance on the larger Tri-Cities area for specialized services. While basic maintenance can be handled by local general mechanics in Mountain Home itself, the demand for expertise in Duramax, Allison transmissions, and advanced electronics necessitates traveling to Johnson City. * **Average Quality:** The quality is bifurcated. General repair shops are abundant, but true specialists for GMC's complex systems are concentrated in a handful of highly-regarded businesses, as listed above. * **Competition Level:** Competition is moderate among general auto repair shops, but there is low competition for true GMC and diesel specialists. The dealership (Stevinson) and a few dedicated independent shops (C & M Diesel) effectively dominate the high-end, specialized repair segment. * **Typical Pricing:** Pricing tiers are clear. Dealerships command a premium for OEM parts and factory-certified technicians. Specialized independents like C & M Diesel are competitive on labor rates for complex diesel work but may be higher than general shops due to their expertise. Generalists (like C & J) offer the most competitive labor rates for non-diesel GMC repairs. A customer's choice often depends on the balance between cost, specialization, and the desire for genuine GM parts.

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 Mountain Home regulations and climate