The Best GMC Repair in Horsham, PA

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

#1

Fred's Fleet Service & Auto Repair

4.8
(240 reviews)
Verified

A family-owned business with a stellar reputation for servicing both consumer and commercial vehicles. They are particularly renowned for their work on domestic trucks and SUVs. Their technicians have deep experience with GM platforms, making them a top choice for complex GMC diagnostics and repair, from Duramax engines to advanced electronic systems in Denali models.

537 Jacksonville Rd, Horsham, PA 19044

Specialties & Features

Duramax diesel service
Allison transmission repair
Heavy-duty truck suspension

Business Information

Years in Business:18 years
Licensed:Yes
Insured:Yes
#2

J&T Performance & Auto Repair

4.7
(180 reviews)
Verified

J&T has built a strong local presence by focusing on performance and dependable repair for trucks and SUVs. They are a go-to shop for owners of GMC Sierra and Yukon models who require specialized transmission work, 4WD system service, and engine performance tuning. They receive consistent praise for their technical knowledge and honest service.

601 Witmer Rd, Horsham, PA 19044

Specialties & Features

Transmission repair (Allison
10-speed)
4WD and towing system service
EcoTec engine diagnostics

Business Information

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

Mavis Discount Tire & Auto Service Center

4.4
(290 reviews)
Verified

As part of a larger regional chain, this Mavis location offers the benefit of widespread technical resources, certifications, and standardized training. While not a specialized boutique shop, they are a highly accessible and capable option for a wide range of GMC services, including routine towing package maintenance, suspension work, and electronic diagnostics for Denali features. Their high volume provides extensive practical experience with common GMC issues.

601 Easton Rd, Horsham, PA 19044

Specialties & Features

Towing package maintenance
Denali luxury features and electronics
General GMC service
maintenance

Business Information

Years in Business:10 years
Licensed:Yes
Insured:Yes

Why These Are the Top GMC Repair Auto Repair Shops in Horsham

** The GMC repair market in Horsham, PA, is competitive but segmented. The quality of service is generally high, driven by a knowledgeable suburban customer base with significant numbers of truck and SUV owners. The competition is primarily between highly-rated independent shops (like Fred's and J&T) and established national chains (like Mavis). * **Average Quality:** Above average. Customers expect and receive a high standard of work, pushing shops to maintain expertise, particularly in complex systems like diesel engines and advanced transmissions. * **Competition Level:** Moderate to High. While there are many general mechanics, only a handful of shops have the specific tooling, software, and technician expertise to handle the full spectrum of GMC-specific repairs, especially for Duramax and Allison systems. This creates a niche for the top providers. * **Typical Pricing:** Pricing is in line with the greater Philadelphia region. Independent specialists typically command a premium for complex diagnostics and diesel work ($150-$175/hr), while chains may offer more competitive rates for standard maintenance and repairs ($125-$150/hr). Customers are generally willing to pay for proven expertise on their high-value vehicles. For the most specialized work (e.g., major Duramax engine overhaul), some owners may still be referred to dedicated diesel shops in the wider region, but the providers listed above are fully capable of handling the vast majority of service and repair needs for GMC vehicles in Horsham.

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 Horsham regulations and climate