Our Company

On-Site Fleet Service, Inc. has been in business for over 39 years and has grown into the largest non-dealership doing professional diesel and school bus repair in the state of New Jersey.

We are a second-generation family - owned and operated repair company. The Company was started in May 1978 in Moonachie, New Jersey and has experienced rapid growth from one facility to four.

Come by and visit our state-of-the-art and professional shops.

  • East Brunswick
  • Rutherford
  • Kenilworth
  • Lakewood

On-Site Fleet Service, Inc. offers a complete menu of maintenance programs for school buses, medium and heavy-duty trucks. Including computerized preventive maintenance, brakes, clutches, engines, transmission rebuilding, and road service. On-Site 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.

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

  • 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