Master Mechanic Diagnostics & Repair

(703) 962-1379
33 Verified Reviews

8:00am to 6:00pm


14303-A Sullyfield Cir
Chantilly, VA 20151 USA


  • Don Ballard, Owner
  • Established 1997
  • 3 Auto Repair Mechanics on Staff
  • 2 ASE Certified Auto Technicians
  • 90 Years of Car Repair Experience

Master Mechanic Diagnostics & Repair Reviews


33 Verified Reviews
5 stars
4 stars
3 stars
2 stars
1 star
by October 23, 2015

Prices seem high but really have no comparison.

by - Verified Customer October 08, 2015

They are a first class repair facility. They are honest, dependable and do quality work.

by - Verified Customer August 27, 2015

They did the work correctly and on time.

by July 03, 2015

Great service.

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by - Verified Customer June 12, 2015

Friendly great prices and convenient location.

by - Verified Customer May 29, 2015

Service was good, staff very nice.

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by May 28, 2015

Mixed feelings. Didn't get a pretty important phone call back and the diagnosis was incorrect.

by - Verified Customer May 27, 2015

They were very professional, and the mechanic made me feel very welcome.

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by - Verified Customer May 19, 2015

Timely and accurate service...diagnosed problems with vehicle and offered a range of solutions.

by - Verified Customer May 15, 2015

They were considerate, they did good work and the work was done on time.

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by May 15, 2015

They have always done excellent work for me.

by - Verified Customer May 14, 2015

They are excellent, and they always do very good work. I have never had any problems with them or their work.

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by - Verified Customer May 12, 2015

I never give a maximum score because there is always room for improvement, and their prices are a little too high.

by - Verified Customer May 05, 2015

You guys are good but can be expensive.

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by - Verified Customer May 05, 2015

Both major problems I have had over the last year do not seem resolved even after considerable expense and time. Dash panel indicators are still lighting up!

by - Verified Customer April 23, 2015

They do good work, and they are always very fair.

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by April 17, 2015

I think they are good, but they have a tendency to be expensive and they recommend more work than what needs to be done.

by - Verified Customer April 17, 2015

They have what I would call a discount card, or plan. You pay a quite reasonable amount of money for the card and in return get freebies for minor maintenance and discounts on other procedures. In my case, the card will easily pay for itself. Also, the work I have had done was good.

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by - Verified Customer April 15, 2015

They are very trustworthy and I like them. I can take my car in there and they won't try to tell me that I need services that I don't need like other places I have been to.

by - Verified Customer April 08, 2015

I actually know some of the mechanics, my friends do my work. They give me a great deal and the work is done on time.

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by - Verified Customer April 03, 2015

I like the friendly service, I am always satisfied with their work.

by - Verified Customer March 26, 2015

At first I thought MM to be different from other auto repair, more honest, more genuine. Last visit I was disappointed to find that they just generally like to run up my ticket as high as they can while trying to convince me that I'm getting a good deal. Will be on my guard next time. Not buying it!

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by - Verified Customer March 20, 2015

They seem to be honest and very knowledgeable of the service, overall I like the experiences they provide.

by - Verified Customer March 20, 2015

They did good work and they were pretty nice. They are very friendly and accommodating, they knew I needed to get in and out quickly and they did whatever they could to make it happen.

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by - Verified Customer March 17, 2015

They did what I asked at a reasonable price, and did their job right. They are competent and know their stuff.

by - Verified Customer March 13, 2015

They are trustworthy and provide you with appropriate options for required service vs what is upcoming.

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by March 12, 2015

Good service. Great communication skills, they are honest and very reliable.

by - Verified Customer March 06, 2015

They are friendly, knowledgeable and affordable.

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by - Verified Customer March 03, 2015

Great customer service.

by - Verified Customer February 10, 2015

I would never recommend Master Mechanic to a friend or colleague. In fact, I have recommended that friends and colleagues stay away. I took my car into MM because a check engine light was on; after keeping it all day, a $1200 repair estimate was issued, for something that was not at all wrong with my vehicle. A different mechanic located the actual issue and repaired my vehicle for a third of what MM quoted. Dishonest.

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by - Verified Customer February 02, 2015

I received a good service from them.

by January 09, 2015

They do pretty good work, they always do a good job.

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by - Verified Customer January 09, 2015

They do a good job, they check everything to make sure it is working well.

RepairPal Scorecard


Master Mechanic Diagnostics & Repair is a family owned and operated business that has been proudly serving Chantilly and the surrounding area since 1997. The team here has a excellent mixture of experience, ongoing training, and ASE certifications. They have at their disposal the shop equipment diagnostic tools we would expect to see at a RepairPal Certified shop. This combination of tools and knowledge enables them to perform repairs ranging from tires and wheel alignment, to minor and major mechanical repairs, to check engine light diagnoses and repairs, as well as your scheduled maintenance needs. Work performed here is backed by a Nationwide 36 month / 36,000 mile warranty for your peace of mind. Recent customers described this shop to us as, "trustworthy", "excellent", "knowledgeable", "friendly", and "affordable". A local shuttle service, rental cars, early bird drop off, and a waiting area with wireless Internet are all available for your convenience.



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


  • 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
  • Parts/Accessories
  • Rental Car
  • Senior Discount
  • Service Guarantee
  • Shopping Nearby
  • Shuttle
  • Towing
  • Warranty Accepted
  • Wireless Internet
+ More


We are located on Sullyfield Circle in Chantilly, Virginia, where we have been since 1991. Master Mechanic is the auto repair shop that offers you complete automotive services for both foreign and domestic vehicles. From a simple oil & filter change, to value priced factory scheduled maintenance, to complex electrical diagnosis or even complete engine or transmission replacement, Master Mechanic is your one stop alternative to car dealer service departments, chain stores, tire shops, and quick lubes.


  • Acura
  • Audi
  • BMW
  • Buick
  • Cadillac
  • Chevrolet
  • Chrysler
  • Dodge
  • Ford
  • GMC
  • Geo
  • Honda
  • Hummer
  • Hyundai
  • Infiniti
  • Isuzu
  • Jaguar
  • Jeep
  • Kia
  • Lexus
  • Lincoln
  • Mazda
  • Mercedes-Benz
  • Mercury
  • Mini
  • Mitsubishi
  • Nissan
  • Oldsmobile
  • Plymouth
  • Pontiac
  • Ram
  • Saab
  • Saturn
  • Scion
  • Subaru
  • Suzuki
  • Toyota
  • Volkswagen
  • Volvo
+ More
Questions Answered by Master Mechanic Diagnostics & Repair
Is there an expert who is very familiar wi...
Please call 703-449-9000 to schedule a diagnosis and testing appointment so that we can determine the cause of the failure.
Don Ballard
Master Mechanic Diagnostics & Repair, Inc
My 2002 suburban runs fine. all of the su...
Probably not a self diagnosis issue. Glad to check it out at Master Mechanic in Chantilly. Have it towed or somehow drive it to 14303 Sullyfield Circle, Chantilly, VA 20151 and drop it off. We'll get it checked out for you.
in the mornings when I am going to work a...
There is no way to determine the cause of the noises without a qualified technician diagnosing the problem. Please call Master Mechanic at 703-449-9000 to schedule an appointment to check out the noise.
How can I fix my gas needle it stuck and w...
The "most likely" scenario in the other answer to this question will require draining, removal and replacement of the fuel tank to try the repair. The causes are all listed, sended, wiring, instrument cluster or even a connector issue.
Before throwing parts at the problem, take the car to a qualified, licensed repair facility for proper diagnosis.
most likely to realize gas is low when goi...
There is either a failure of the sending unit in the gas tank or the connections/guage in the instrument cluster. You'll need to have it tested to see which one it is before an estimate can be determined. You can call to schedule an appointment 703-449-9000. Thanks.
Master Mechanic
I changed the battery now driver's sid...
It's possible that the body control module has failed or that the window control unit has failed. Take it to a qualified shop for proper diagnosis. Tough to diagnose electrical over the internet.

Come find out why our customers love us!
New Customers! Get 20% Off Labor on your first visit. Print this coupon and present it when you drop off your car. First time customers only. May not be combined with other offers. Maximum discount $100.
Expiration Date: 06/30/2017
Coupon data is provided by merchants. RepairPal does not guarantee and shall not be responsible for validity or accuracy of any information of the coupon. Coupon ID #1620

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