Our Services
Our mechanics have years of experience in the auto repair industry and have proven their wide range of capabilities through 26 years of customer satisfaction. So if you’re looking for the best vehicle repair and maintenance service in the Manassas area, look no further!
Repairs
- Air Conditioning Repair
- Belts & Hoses
- Brake Service
- Drive Axles
- Electrical Service
- Engine Replacement
- Exhaust Service
- Radiators
- Suspension, Shocks, and Struts
- Transmission Service
Maintenance
- Air Conditioning Service
- Battery Maintenance
- Cooling System Maintenance
- Factory Scheduled Maintenance
- Inspections, Emissions
- Inspections, State
- Oil Changes
- Tune-ups
- Windshield Wiper Blades
Tires & Wheels
- Tire Repair & Flat Repair
- Tire Replacement
- Tire Rotation
- Wheel Alignments
- Wheel Balancing
Contact
Give Us a Call
Find Us at the Shop
Acceptable Payments






Our Hours
Monday | 8:00 AM - 6:00 PM |
Tuesday | 8:00 AM - 6:00 PM |
Wednesday | 8:00 AM - 6:00 PM |
Thursday | 8:00 AM - 6:00 PM |
Friday | 8:00 AM - 6:00 PM |
Saturday | Closed |
Sunday | Closed |
Reviews
Katrina King
26 July, 2025
Excellent service, very professional, and listens to the customer's concerns. TRUE STORY: My son's Mini Cooper broke down, and the insurance company picked up the vehicle and towed it to one of their recommended BMW shops. The insurance company shop called for additional authorization of $150-$300 for further testing to determine if the engine needs to be replaced between $12,000 - $18,000. I declined and pick up the vehicle and took it to HAAS auto repairs. The owner, Billy, has worked on the car many times and provided excellent service. HAAS called me the next day, indicated they removed rear value cover & found the casing plugin cylinder head between the camshafts came out. I pick up the vehicle for a fair price. MY SON CAN COMPLETE GEORGE MASON WITH HIS VEHICLE. GOD BLESS.
Jason Benjamin
26 July, 2025
What more can I say, Bill Haas and Haas Auto are truly awesome. He previously worked on my 66’ Corvair and knew exactly what needed to be done on a brake job. Perfect! Today, when another mechanic tried to scam me $650 on a tie rod failure “discovered” during a VA state inspection, Bill and crew came to the rescue. Saw the car the same day and confirmed there were no issues. Honest, fair and integrity here at Haas Auto. Thank you! Have my business for life.
Robert Diamond
26 July, 2025
Bill Haas provides highly competent service on our cars at reasonable prices. He is an excellent diagnostician and doesn’t have to guess what needs to be fixed. I trust him implicitly to keep my cars running well.