The Best GMC Repair in Old Westbury, NY

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

#1

Competition GMC of Smithtown

4.5
(280 reviews)
Verified

As an official GMC dealership, Competition GMC provides the most comprehensive and factory-direct service for all GMC models. Their master technicians are specifically trained by GM and have direct access to the latest technical service bulletins, specialized tools, and genuine OEM parts. This is the premier destination for complex electrical diagnostics, warranty work, and maintaining Denali luxury features.

340 Maple Avenue, Smithtown, NY 11787

Specialties & Features

Duramax diesel service
Denali electronics
Allison transmission repair

Business Information

Years in Business:45 years
Licensed:Yes
Insured:Yes
#2

European Auto Group

4.8
(150 reviews)
Verified

While the name suggests a European focus, this highly-rated independent shop has built a formidable reputation for servicing American performance and diesel vehicles, including GMC trucks and SUVs. They are particularly praised for their diagnostic capabilities on EcoTec and Duramax engines and their work on performance and suspension upgrades for heavy-duty models.

100 Voice Road, Carle Place, NY 11514

Specialties & Features

EcoTec engine diagnostics
Heavy-duty truck suspension
Duramax diesel service

Business Information

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

Mavis Discount Tire - Auto Service Center (Roslyn)

4.3
(90 reviews)
Verified

Part of a large regional chain, this specific location has a strong local reputation for general and specialized mechanical work on trucks and SUVs. They are a reliable and more affordable option for routine and essential GMC services, including 4WD system maintenance, transmission fluid services, and towing package inspections. They cater to the daily driver and work truck fleet.

140 Mineola Avenue, Roslyn, NY 11576

Specialties & Features

4WD and towing system service
Transmission repair
General maintenance

Business Information

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

Why These Are the Top GMC Repair Auto Repair Shops in Old Westbury

** The GMC repair market serving Old Westbury, NY, is characterized by a clear tiered structure. The area, being affluent with a high concentration of luxury and heavy-duty vehicles like the GMC Yukon Denali and Sierra HD, demands high-quality service. * **Average Quality:** The average quality is high, driven by customer expectations. Independent shops must compete on expertise and personalized service to distinguish themselves from the dealership's inherent authority. * **Competition Level:** Competition is strong but specialized. The dealership (Competition GMC) holds a dominant position for factory-backed services. Independent specialists like European Auto Group compete by offering niche expertise, often with more flexible scheduling and sometimes lower labor rates. General service centers like Mavis compete on convenience and price for non-specialized repairs. * **Typical Pricing:** Pricing follows the tiered structure. Dealership services command a premium (often 15-30% higher), justified by OEM parts and manufacturer-specific training. Top-tier independents charge rates comparable to dealerships for complex diagnostics. General service centers offer the most competitive pricing for standard maintenance and repairs. A complex Duramax or transmission repair will be a significant investment regardless of the provider, reflecting the sophisticated technology involved.

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 Old Westbury regulations and climate