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Technician helping customer
ASE Certified

Diamond State Automotive is equipped to meet all aspects of modern vehicle service. From scheduled maintenance and repair to advanced vehicle diagnostics, our technicians are among the best in the business. Providing services to your personal vehicle while servicing some of the largest vehicle fleets in Delaware. Our dedicated staff is eager to provide you with professional and personalized services that everyone expects from a family operated business.

To schedule an appointment with our friendly staff click on Appointments, or call the New Castle location at (302) 325-2002.

Owner Auto Site


Diamond State Automotive of New Castle
289 Airport Rd
New Castle, DE 19720
(302) 325-2002 Google map of our location
Jasper Engines & Transmissions
Vehicle services

Here at Diamond State Automotive, we pride ourselves in providing excellent service in the following areas:

Automotive Maintenance and Repair

Fleet Management Services

Control Module Programming (In-house and Mobile)

Standard Maintenance Services:

Factory Scheduled Maintenance

Computer Diagnostics

Oil Changes

Tune Ups

Filter Replacements

Safety & Emissions Inspections

Windshield Wiper Blades

Fluid Services

Trip Inspections

Maintenance Inspections

Check Engine Light Diagnostics & Repair

Brake Repair & Antilock Braking System (ABS) Repair

Shocks & Struts Repair

Chassis & Suspension Repair

Suspension & Steering Repair

Engine Services:

Engine Repair

Engine Replacement

Engine Performance Check

Belt Replacement

Hose Replacement

Cooling System Repair

Radiator Repair & Replacement

Water Pump Repair & Replacement

Drivability Diagnostics & Repair

Fuel Injection Repair & Service

Fuel System Repair & Maintenance

Ignition System Repair & Maintenance

Heating & Air Conditioner Repair:

Heating & Cooling System Diagnostics

Auto Air Conditioning Repair & Service

Heating System Repair & Service

Belt Replacement

Compressor Repair & Replacement

Evaporator Repair & Replacement

Auto Electrical Services:

Electrical System Diagnostics & Repair

Alternator Repair & Replacement

Starter Repair & Replacement

Power Lock Repair

Power Antenna Repair

Power Steering Repair

Power Window Repair

Power Accessory Repair

Light Repair & Bulb Replacements

Exhaust Services:

Exhaust Repair & Replacement

Muffler Repair & Replacement

Fleet services

Here at Diamond State Automotive, we pride ourselves in providing excellent service in the following areas:

We follow all manufacturer guidelines of service for company fleet vehicles.

  • Every preventative maintenance service comes with vehicle pick-up/drop-off and a full vehicle courtesy inspection
  • Courtesy inspections and tire repairs are complimentary.
  • Our state of the art systems build client specific databases teaching age of vehicle and average daily mileage providing the customer direct communication automatically. Reducing the need of in-house vehicle maintenance tracking through automated service reminders. Simple one click confirmation/rescheduling with the flexibility to contact either the fleet manager or the specific driver.
  • You will receive a loyalty website where you can log in and track all your vehicle records from our services and any notations made about those vehicles.
  • You can request appointments via phone or through our website
  • We do not require service contracts. We believe our work and the benefits of our company should make the client want to use us as opposed to being bound by a contract.

Give us a call at (302) 325-2002 for information on our fleet services at our Airport Road facility in New Castle.

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