The Best GMC Repair in Andover, NH

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

#1

Route 4 Auto & Truck

4.7
(180 reviews)
Verified

A highly respected, long-standing full-service shop known for its expertise with both domestic cars and heavy-duty trucks. They have a strong reputation for honest diagnostics and quality workmanship on complex drivetrain and engine systems, making them a top choice for GMC Sierra and Denali owners in the area.

1876 US Route 4, Andover, NH 03216

Specialties & Features

Duramax diesel service
Allison transmission repair
Heavy-duty truck suspension

Business Information

Years in Business:30 years
Licensed:Yes
Insured:Yes
#2

P&R Transmissions & Auto Repair

4.6
(120 reviews)
Verified

While the name highlights transmissions, this Franklin-based shop is a recognized expert in all drivetrain components. They are a go-to specialist for Allison transmission rebuilds and diagnostics, and their reviews frequently mention successful repairs on 4WD systems and towing-related issues for GM trucks.

1000 Central St, Franklin, NH 03235 (Approx. 15 minutes from Andover)

Specialties & Features

Allison transmission repair
4WD and towing system service
EcoTec engine diagnostics

Business Information

Years in Business:15 years
Licensed:Yes
Insured:Yes
#3

Grappone Automotive Group - Service Center

4.4
(300 reviews)
Verified

As a premier GM dealership, Grappone offers the highest level of factory-specific technical support, specialized tools, and OEM parts. This is the definitive choice for complex Denali luxury feature repairs, advanced electronics, and warranty work. Their technicians are GM-certified and receive direct training on the latest GMC systems.

128 Manchester St, Concord, NH 03301 (Approx. 25 minutes from Andover)

Specialties & Features

Denali luxury features and electronics
GMC towing package maintenance
Factory-level diagnostics

Business Information

Years in Business:95 years
Licensed:Yes
Insured:Yes

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

** The GMC repair market in the Andover, NH area is characterized by a mix of highly capable independent shops and a major dealership presence in the nearby commercial hub of Concord. Due to Andover's rural nature and proximity to major routes (I-89, I-93), the local providers have built strong reputations for servicing the heavy-duty trucks and SUVs common in the region. * **Average Quality:** The quality is generally high, with several shops boasting long tenures and deep, multi-generational expertise in American-made trucks. Customers expect and receive durable, reliable repairs. * **Competition Level:** Competition is moderate but specialized. While there are several general mechanics, only a handful have the specific tooling, software, and experience for complex Duramax or Allison transmission work. This specialization allows the top shops to command a premium. * **Typical Pricing:** Pricing is competitive for New England. Independent specialists like Route 4 Auto and P&R Transmissions typically offer rates 15-30% lower than the dealership (Grappone). However, the dealership provides the assurance of OEM parts and factory-trained technicians, which justifies its higher labor rate for certain repairs, especially those involving warranty or advanced electronics.

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 Andover regulations and climate