✓ RepairPal Certified
1410 Concord Ave, #E
Concord , CA 94520
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8:00am to 6:00pm
8:00am to 6:00pm
8:00am to 6:00pm
8:00am to 6:00pm
8:00am to 6:00pm
Call now:
(925) 968-4601

Auto Repair Experience

  • Harold Dorton, Owner
  • Established 2014
  • 2 Auto Repair Mechanics on Staff
  • 1 ASE Master Auto Technician
  • 13 Years of Car Repair Experience


Contra Costa Auto Service is the latest endeavor by Harold Dorton and his highly qualified team of professionals. Following in the footsteps of Harold's other 2 shops, this RepairPal Certiifed shop functions under the same successful model as the others. This auto repair facility is lead by ASE Certified Master Technician, Adrian Radu. Adrian has many years of experience as a BMW Master Technician. The team makes sure to stay up to date on the latest technologies by attending good quality automotive training, and have at their disposal some of the best automotive tools and computer diagnostic equipment that is available. Even though this shop was established in 2014, they have already developed raving fans. Their high levels of customer satisfaction was verified in our unbiased survey of their most recent customers, where they received a near perfect customer service score. The work they perform is backed by a 12-month / 12,000-mile warranty for your peace of mind. Local shuttle service, early bird drop off, Saturday hours, and a clean waiting area with wireless internet are available for your convenience.


Auto Repair Experience

  • Harold Dorton, Owner
  • Established 2014
  • 2 Auto Repair Mechanics on Staff
  • 1 ASE Master Auto Technician
  • 13 Years of Car Repair Experience


  • AC/Heating
  • Alignment
  • Check Engine Light
  • Classic Car Repair/Restoration
  • Diagnosis
  • Hybrid/Electric
  • Muffler & Exhaust
  • Oil Change & Lube
  • Scheduled Maintenance
  • Service & Repair
  • Timing Belts
  • Tire Sales/Repair
  • Transmission Repair
  • Upholstery
  • Windshield/Glass


  • AAA Member Discount
  • Car Pickup/Dropoff
  • Child Friendly
  • Coffee
  • Early Bird Dropoff
  • Extended/Evening Hours
  • Financing
  • Free Estimates
  • Free Multi-Point Safety Inspection
  • Heated Waiting Room
  • Military Discount
  • Rental Car
  • Senior Discount
  • Service Guarantee
  • Shopping Nearby
  • Shuttle
  • Towing
  • Warranty Accepted
  • Wireless Internet

Makes We Serve

  • Acura
  • Audi
  • BMW
  • Buick
  • Cadillac
  • Chevrolet
  • Chrysler
  • Dodge
  • FIAT
  • Ford
  • GMC
  • Geo
  • Honda
  • Hummer
  • Hyundai
  • Infiniti
  • Isuzu
  • Jaguar
  • Jeep
  • Kia
  • Land Rover
  • Lexus
  • Lincoln
  • Mazda
  • Mercedes-Benz
  • Mercury
  • Mini
  • Mitsubishi
  • Nissan
  • Oldsmobile
  • Plymouth
  • Pontiac
  • Ram
  • Saab
  • Saturn
  • Scion
  • Smart
  • Subaru
  • Suzuki
  • Toyota
  • Volkswagen
  • Volvo

Message from the Shop

We are a full service repair facility with the latest equipment and highly trained ASE Certified Master Technicians servicing and repairing all makes and models. We believe there’s no substitute for training. That’s why our technicians attend regular seminars to keep up with current technology. This translates to more efficient and accurate repairs because we have the knowledge to diagnose and repair your vehicle correctly the first time, on time, every time!

We also hold MACS certification for A/C diagnosis and service. We care enough about the environment to follow strict guidelines on Freon recovery. We also employ several factory trained technicians with backgrounds in BMW, Mercedes, Audi, VW, GM, and Hyundai. We have an edge over smaller shops with limited resources and allows our customers to have greater peace of mind when bringing their car to us.

Whether your vehicle is 30 years old or still under the manufacturer’s warranty, we’ll treat it like our own!

We're open Monday t


Overall Rating

25 Verified Reviews

Customer Reviews

Verified CustomerApril 23, 2014

They are great! Very knowledgable service at a reasonable price!!

Verified CustomerApril 17, 2014

The prices for the work are very reasonable compared to other garages I have used in the past and the guys are very personable.

Verified CustomerApril 16, 2014

Very honest assessment of what work was necessary to be done to the car now versus work that could be delayed into the future.

Verified CustomerApril 10, 2014

Both guys i spoke to in person, great customer service. Even 1st time on phone, very helpful.

April 01, 2014

They fixed my problem

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Verified CustomerMarch 29, 2014

They are efficient and knowledgeable about cars and their honesty can't be beat.

Verified CustomerMarch 25, 2014

Excellent service, knowledgeable staff that saved me money. Very happy with my experience and will be back.

Verified CustomerMarch 21, 2014

Repair was perfect.

Verified CustomerMarch 12, 2014

Excellent service.

Verified CustomerMarch 12, 2014

Honest and friendly service.

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Verified CustomerMarch 11, 2014

They diagnosed my truck accurately, and get it right the first time around. My truck is a 1999 with relatively low miles. Of course I can replace just about everything, but CCAS pinpoints the problem and fixes it the first time, and only as needed. I have not had that same experience with other mechanics.

Verified CustomerFebruary 28, 2014

The staff is very professional, they take the time to explain the work that will be done, and provide recommendations of work that may be needed in the future. Price for work is also fair.

Verified CustomerFebruary 24, 2014

Friendly, honest, good prices

Verified CustomerFebruary 17, 2014

Good knowledgeable & experience, also courteous.

Verified CustomerFebruary 04, 2014

Experts, honest and good communication.

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Verified CustomerFebruary 04, 2014

Adrian serviced my BMW and explained the work that would be performed on the car, and the amount charged is what he quoted me.

Verified CustomerFebruary 03, 2014

Excellent customer service and pricing!

Verified CustomerJanuary 23, 2014

The proprietor is extremely knowledgeable, efficient and charges reasonable prices. His troubleshooting expertise on our BMW is without peer.

Verified CustomerJanuary 17, 2014

Adrian, the owner, provided excellent service. Additionally, he is very good at educating you, the customer, about what your car's needs are.

Verified CustomerJanuary 10, 2014

The person who helped me was very knowledgeable and courteous. Explained to me what was needed on my car and why.

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Verified CustomerDecember 16, 2013

They provided great service and even offered a recommendation that was cheaper (less money for him).

Verified CustomerDecember 11, 2013

Excellent service and value.

3 verified customers did not leave comments but provided these ratings:
by 1 verified reviewer
by Jean
by Edna

10% OFF your first visit

Contra Costa Auto Service
1410 Concord Ave, #E
Concord , CA 94520


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RepairPal Certified

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