Top 3 GMC Repair Shops in Waterloo

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

#1

St. Clairsville GMC

4.5
(180 reviews)
Verified

As the authorized GMC dealership for the region, St. Clairsville GMC offers the highest level of factory-specific training, tools, and genuine GM parts. Their master technicians are certified to handle everything from complex Duramax and EcoTec engine diagnostics to the latest infotainment and Denali luxury feature repairs. This is the premier destination for warranty work and specialized services like Allison transmission flush and programming.

52600 National Rd, St. Clairsville, OH 43950

Specialties & Features

Duramax diesel service
Denali electronics
features
Allison transmission repair

Business Information

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

Cambridge Diesel & Auto Repair

4.7
(95 reviews)
Verified

A highly regarded independent shop known for its deep expertise in diesel performance and repair. They are a top choice for GMC Sierra HD owners needing specialized Duramax service, including injector replacement, turbo work, and emission system (DPF/SCR) service. They also have strong credentials in heavy-duty suspension work and towing system maintenance, catering to customers who use their trucks for serious work and recreation.

1208 Southgate Pkwy, Cambridge, OH 43725

Specialties & Features

Duramax diesel service
Heavy-duty suspension
Towing package maintenance

Business Information

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

T&T Auto & Truck Repair

4.3
(130 reviews)
Verified

A well-established, full-service shop with a strong reputation for dependable work on both gasoline and diesel-powered GM trucks. They are a reliable alternative to the dealership for complex diagnostics, transmission service, and 4WD system repairs. Customers frequently praise their honest diagnostics, fair pricing, and ability to tackle a wide range of issues on older and newer GMC models.

70290 Bannock Rd, St. Clairsville, OH 43950

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 Waterloo

** The GMC repair market serving Waterloo, Ohio, is characterized by a reliance on service providers in neighboring commercial centers like St. Clairsville and Cambridge. As a small village, Waterloo itself does not host dealership-level or highly specialized independent shops. The market is moderately competitive among these nearby providers, with a clear tiered structure. The authorized dealership (St. Clairsville GMC) commands a premium price but offers the most current technical expertise, proprietary software, and OEM parts. Independent specialists like Cambridge Diesel compete by offering deeper diesel performance knowledge and often more personalized service at a lower labor rate. General repair shops like T&T Auto fill a vital niche for dependable, cost-effective maintenance and repair. Typical pricing reflects this structure, with dealership rates being the highest, followed by the specialized independents, and then the general repair shops. For residents of Waterloo, the key factor is the short drive to access a robust and competitive market of qualified GMC repair specialists.

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 Waterloo regulations and climate