Amazing mechanics doing honest work, enjoyed my experience getting my car serviced. The pricing is…read moresuper reasonable and they were very transparent about what had to be done. Super friendly staff. Definitely recommend taking your car here. They will be our go to for both me and my boyfriend's auto needs.

I had such a great experience here - I originally went in for a brake inspection after another…read moreshop told me I needed work done, and Kevin took the time to thoroughly check everything for me. Not only did he explain things clearly, but he was also honest and reassuring -- he let me know my brakes were actually in good condition and didn't need any work at this time. That kind of transparency is rare and very appreciated. What really stood out to me was his integrity. He didn't try to upsell me or push unnecessary repairs, saying "sometimes you just gotta help people out." That genuinely meant a lot. It's hard to find a mechanic you can trust, and this experience gave me a lot of confidence in coming back here for future maintenance. Highly recommend to anyone looking for honest, knowledgeable, and kind service.

Jim's Transmissions' (repair) may be the best transmission specialist in Northern Virginia. The…read moreparking lot is filled with vehicles waiting for repairs. The wait list is long for a reason: Jim's repairs transmissions. He doesn't just do swaps and prays for the best, Jim's actually rebuilds your very own transmission correctly using OEM factory certified parts for the repair and years and years of experience repairing and rebuilding transmissions. If you're having transmission issues, take your vehicle to Jim's. 3 year/50,000 mile warranty after repairs. I can't recommend them enough. Jim repaired my truck and it went from hard shifting to smooth as silk shifting. All the clanks and clunks disappeared also. It's as if my truck is brand new again.

Jim's transmission is a good place to have your vehicle's trans serviced. Honest shop that didn't…read moretry to upsell me. Just performed the needed service at fair price. Diagnosed shudder, changed trans fluid and filter $375, a lot less than the dealer or other indy shops quoted me ~$680.

From the owner: We believe in the importance of honesty and integrity. As most of us are aware, maintenance is very…read moreimportant to the longevity of your vehicle. Even if your vehicle is perfectly maintained, it is likely that eventually something will go wrong. We have a crew of very experienced technicians that are capable of efficiently diagnosing and repairing most anything that your vehicle can throw at us. With over 10 years of combined experience, we have seen a lot and we can use this to help our effort to find out what's wrong and get you going again.

My car broke down and it was sent to AAA at first but then they didn't have the equipment to fix my…read morecar. I called Cottman Transmission and had my car towed to them. Mr. Sethi was super nice and understanding. He worked with me on the expense due to I needed a TCM to fix my transmission. The part was ordered and they fixed my car. I was so excited on the service that I had received. The mechanics were nice and helpful as well. 2 months later, I had an issue with my car and I had my car towed to them again and they fixed my brakes. I am so happy that I now feel very comfortable in taking my car to them because I know I'm not going to be taken advantage of just bc I am a woman. Thank you for all of your work and friendly staff. I appreciate it so much!!! Thanks, Alicia V

My granddaughter's 2003 VW Beetle was having trouble with acceleration, so it was towed to a nearby…read moreauto repair shop for diagnosis. Then I get a call from them with a quote of over $7,000 to replace the transmission - yikes! So I did some checking around, and then had the car towed to Cottman. Leonard concurred with the diagnosis, but then quoted less than half of the price to replace, with a 1 year warranty. He gave a window of time for the work to be completed, and actually finished within the time frame - almost unheard of! I can't sing their praises high enough - many thanks, Leonard!

Finding a good auto shop can be frustrating, exasperating, and hands down difficult. I recently…read moremoved to the area and this place is nearby and had good reviews so I figured I would give them a shot. They have been wonderful!! First, I called and scheduled an oil change and emissions on one of our cars. It was scheduled for two days later. Dropped it off, waited about 30-40 min and then done! Best of all they did not try to make me do a bunch of unnecessary things. Paid and I was out. $99 for an all synthetic oil change was very reasonable. Second, I had two flat tires. I had my insurance roadside tow my car down the street here. They called to let me know one could just be repaired but the other one should be replaced. We replaced both tires and got an oil change. Everything was done by the next morning. Prices were reasonable and service impeccable. They picked me up to get the car. Timmy always provides above and beyond customer service and really makes you feel like a valued customer. I have been to so many auto shops in Loudoun County and none were as honest and convenient! I'm so glad we found a reliable place nearby with such excellent service!

I've been here numerous times now, probably 3-5 times total. Including right this moment . Even…read morethough they're a few mins past closing time, they gladly took me . Most people have an attitude and are rude when you come in a business while closing . Not these guys. 11 out of 10 stars. Always find and fix the issue fast and with great care . Zero complaints . Friendly smiling staff as well! Definitely recommend .

Trustworthy mechanics with great customer service. Family owned shop. Reasonable prices…read more They work on classics, high end sports cars, European cars, and general American made cars, all with expert care and diligence, I normally do my own work because of the bad experiences and poor workmanship from dealers and other shops. I don't hesitate to use Clark's, even with my Corvette C8. First mechanics shop I could recommend in 30 years.

If you own a Corvette, old or new, and live in northern VA, you should be taking it to Clark's for…read moremaintenance! Dave, the Corvette specialist, goes above and beyond to keep my 1993 C4 running great, and their pricing is very reasonable.

I seriously don't know why the reviews here are so bad. Maybe cause the reviews are old and…read moreactually irrelevant. I came here twice already and I don't even live in manassas anymore but I still come out here to get my service done. Prices are great and Rob is seriously easy to work with. His guys are super nice and they work diligently. Expect to call for an appointment and expect to wait. You don't want your job to be rushed as well. Honestly, I recommend them 100% and people be frustrated with the hours is kind of absurd. If you don't want to work those hours why would you ask them to? They are straight forward and will look out for your pockets and car. Highly recommend!!

I had a horrible experience at this shop. Took my car to them in December 2025. Didn't get it back…read moreuntil March 2026 with several issues in- between. Each time I picked-up my vehicle before March there was still something wrong with the transmission so I took it back. Finally, I told them that I must have my vehicle back the first week of March. When I picked my vehicle up it was obvious that there was an issue with the muffler. It was making a loud noise like there was a hole in it. Having wasted enough time with AAMCO, I took my vehicle to a different transmission shop (wish I had gone there from the beginning). They said the muffler was not connected to the manifold gasket properly. They also said that the axel was connected with a zip tie instead of a metal clamp. Took the bill from the other shop to the AAMCO owner and he said he would send me a check. I detected some sarcasm but wanted to see if he would follow through. Haven't received a check yet. One of those situations where I wish I had taken my vehicle anywhere else from the beginning. I will never take a vehicle there again and would encourage everyone that I know that has a transmission problem to stay away from that shop.

Jim and Chris has been very helpful with getting me scheduled with oil change services for my Audi…read moreQ3 and they have followed up to ensure that their services has met my expectations and that my vehicle is working properly after they have serviced it. Their prices are very respectable for the type of maintenance and customer service they provide and it might be a bit more expensive than other places I've inquired with, but through conversations with them and actual experience compared to other places I've been to, I most definitely trust their services more. Highly recommended especially if you value the maintenance your car goes through.

I try to do all auto repairs myself, but the few times I've been unable to get something done, Coho…read morehas done a fantastic job, and at what I would consider to be a great value. Communication from the front desk, whether text (preferred) or over the phone is always top-notch.

Honesty, person-ability, and quality work. In a business that can be dishonest, I went to Logan…read moreworried that I had a $900 problem with my car, only to have him tell me that I had a $250 problem. Since moving to Virginia I come here for anything that is not an oil change or a state inspection (mostly because I live in Alexandria and Manassas is a bit of a hike), but my fiancee has been coming here for years with nothing but good comments. One example was a problem with her Honda Civic that the dealership told her would be $3,100 to fix. Logan found the same problem and another that the dealership did not find and fixed the car for $1,600. Most jobs are completed same-day if you call ahead to let them know you are coming. The work done here lasts and those that work here are very nice. Furthermore, they will describe problems in lay-speak so you can understand what is happening with your car even if you are not a gear-head. Logan taught (not sure if he still does) a class for people about cars so they can be educated enough to not be taken advantage of at other service shops. The building is a little hidden from the main road, so finding the place is helped by using Google Maps or a GPS. There is a lobby for you to wait while they work on your car, and though it is small, it features a television, free coffee, filtered water, and free wi-fi. Bottom Line: tucked away in a small unassuming building, is this great car doctor with excellent bedside manner.

Words could not express how grateful I am for this business existing. You will never find an…read moreautomotive shop as honest and respectful as this place in all of Virginia. I've lived in a few different cities and this place is always where I go for work on my Lexus. They will never suggest anything unnecessary and will keep you as informed on your car as if you were there in the shop with them. The owner is always present giving reasonable prices on work. The owner even gave me a ride to work today so I didn't have to pay for an Uber. If you need your car fixed this is the place to come.

I've used this auto shop several times for both cars. We've had services ranging from routine…read moreinspections to minor repairs and each time have left satisfied. Their front desk has always been courteous and up front regarding costs and time estimates. BUT--- I most appreciate their honesty after the last service. I had two damaged tires replaced and asked them to replace the brakes as well while the car was there. Another auto shop had told me a few months earlier at the state inspection I should have that done but i didn't have time that day. Turns out that other shop was just trying to get more $ out of me. Bills auto informed me there was still adequate life in those brakes after inspection. They did not replace them although it would've been some quick and easy profit. The tire replacement was done at a fair price. We've had other places price match for lower but the cost was still reasonable.

I always recommend! I have been going to Bill's for years now, Happen to find the shop by…read morerecommendation. They have been great to work with giving it to you straight forward as to what needs to be done and what does not. I appreciate this, as most places will sell you a service you don't need. Will continue to be a repeat customer.