Our Company

On-Site Fleet Service, Inc. has been in business since 1978 and grown into the largest non-dealership professional diesel and school bus repair provider in the state of New Jersey.

We are a second-generation family-owned and operated repair company originally founded as a mobile fleet service. Over the years, On-Site evolved to include four repair facilities throughout NJ. While we do still perform occasional “on-site” repairs, our customers now prefer to visit our state-of-the-art locations. We choose to retain the name On-Site as a nod to our proud history and longstanding reputation.

Stop by any of our professional shops.

On-Site offers a complete menu of maintenance programs for school buses, medium-duty trucks and heavy-duty trucks, including computerized preventive maintenance, brakes, clutches, engines, transmission rebuilding, and road service. We can also offer the individual truck owner the type of service and attention that a large fleet would receive.

With the capability of tracking DOT Inspections, PM Services and Opacity testing in our computer systems, we can help control both large and small fleets.

Please be sure to go to our Promotions section for our current promotions and special saving offers.

Fleet Management Companies

Trusted Partner. Reliable Service Provider.

On-Site Fleet Service is proud to provide professional truck repair and maintenance services for industry leaders in fleet leasing and fleet management, including AMF Leasing, ARI, Bush Truck Leasing, any many more. See our full list of fleet management companies who entrust their fleets to On-Site.

Our Mission Statement

Our mission is to be the best truck service company in all markets that we service. We will accomplish this goal through continued employee training and empowerment. This will provide opportunities and security for employees and continued growth and expansion into new market areas. We will uphold the highest standards of service and honesty, earning the trust of the customers we serve.

East Brunswick Shop and Headquarters

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Shop Hours

7AM - 12 Midnight

Lakewood and Kenilworth locations will be open until 8pm.

  • Electrical
  • Exhaust Systems
  • Suspension Work
  • Fuel Injection
  • Lighting system
  • Coolant Service
  • Vehicle Fluids
  • Chassis Lube
  • Air Filter Replacement
  • Clutch Repairs
  • Vehicle Preventative Maintenance
  • State Diesel Opacity Inspection
  • Air Conditioning Service
  • General Truck Repair
  • Tune Ups
  • Oil Change & Lubrication
  • Brake Service
  • Battery Replacement
  • Belt & Hose Replacement
  • Transmission Service
  • Computer Diagnosis Testing
  • Overhead doors
  • Lift Gates
  • FHWA–DOT Inspections
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