I had a great experience with Advanced Transmission Center! They were very helpful, professional,…read moreand kept me updated throughout the whole process. They did a great job on my vehicle and made what could've been a stressful situation much easier. I really appreciate their quality of work and customer service. I would definitely recommend them to anyone needing transmission work!

Great experience with this shop! They were professional, did an excellent job fixing my car, and…read morehad everything working great. I really appreciate their work and would highly recommend them to anyone looking for a reliable place to get their car repaired.

My 08 Chevy Uplander mini van had needed a transmission for a year now. The quotes I was getting…read morefar exceed the value of the van so it sat until I found someone reasonable or the car fell apart in my driveway. By happen chance, I saw an add for them on Facebook then referenced Yelp to read some reviews. I shot them an email and Joe got back to me the following day. After very short chats, it was clear my transmission was shot. Something I already knew. It had been dying for a while and was just running first and second gear for a bit. They quoted me an all inclusive price of an installed rebuild and the quote was the reasonable one I was looking for. I signed off on the work that day and they sent a tow truck to my house to get my van. The tow was free and it was running from my house in SW Denver to 115th in Northglenn. That would be a 200 dollar tow if I had to pay for it. It only took them four days to complete the work. When I arrived to get the van, Joe told me to watch for leaks and if there is anything I don't like, bring it back. He said he would gladly tow it if needed. It came with a three year 100k warranty on parts AND labor. That's a huge deal. I firmly believe that if I have a problem, Joe and Ram's Transmission will stand behind their product and their work. This was an extremely positive and uplifting experience and that's not something I'm often say about car repair shops. Thanks Joe S.

If I could leave a zero star rating I 100% would. Worst automotive place! They are dishonest, rude…read moreand VERY unprofessional! We have taken a truck in for transmission repair not only did they lie about the work and warranty they stole upgraded parts that were on the vehicle! Did a poor job on the "repairs" and pretty much doubled the price. If your looking to be ripped off, taken advantage of, treated poorly and then still have to take it elsewhere where for an actual repair this is the place for you but I would suggest just save the hassle and money!

Mr. Mark at Cottman Transmission is THEEEEEE ABSOLUTE BEST !!!! My vehicle is a drivetime vehicle…read morewith a SilverRock warranty and through all of the challenges we faced with SilverRock , Mr. Mark never threw in the towel and stood by me and my family as we battled SilverRock . Good help in the mechanic world is hard to find, especially when warranty companies are involved and there's a lot of back and forth involved. The amount of time and patience that Mr. Mark displayed has truly been a blessing to me and my family! Professionalism was displayed throughout this entire process as well as honesty about making sure that I as the customer get my money's worth from dealing with SilverRock as well as making sure he and his team would be paid the amount their owed as well . 10/10 service from beginning to end!!

Ohh Oh BETTER GET AAMCO..... Because these fools are a bunch of thieves, I will directly call out…read moreStan at the Westridge location. They ripped me off 3000.00 for a crappy transmission repair that never worked for more than a day. I have now found other customers who they have done the same exact thing to. If you have had issues hit me up. These fools need to be stopped. My new buddy claims that they charged him for a new transmission which they never did. Take your car to a reliable shop. Bekieve me you don't need to go through the crap that this want to be auto shop will put you through. Darry

Unbelievable . I took my 1988 silverado with the 700r4 transmission there because the company I…read moreused last October to rebuild the transmission said that my truck shifted just fine! It wouldnt shift from 1st to 2nd until about 20-22 mph. And then it wouldnt shift from 2nd to 3rd until about 35 mph. I told the place who rebuilt it that for the 30 years I owned the truck, and after a rebuilt transmission in 2000, it shifted from 1st to 2nd at about 15 mph, and 2nd to 3rd about 28mph. The said it shifted like it was supposed to. I took my truck to this place and James, who took it for a test drive, noticed that there was no downshift either! Anyway, after he adjust the detent cable and we drove it, I could tell immediately that it was back where it should have been!! I drove it and my truck was back!! If I ever need something done to my vehicles, I am taking it to these folks! They went above and beyond as far as I am concerned!!

Redoing my one star review because it looks like they tried to cover this up. On July 15th, 2025…read morethey did a tranemission flush for me instead of diagnosing the issue, and going off the engine code. The actual problem was with the transmission and the overdrive itself. I went to Ralph's foothills and they got me fixed up in a jiffy. While Active transmission swindled me out of $304. For a transmission flush I performed a month prior. These guys are clowns.

Great place owner is a friend of a friend but no one knew the have done excellent work for thier…read moreclients I was very impressed and the owner very responsive Great service, great crew fantastic place!!

STAY AWAY from this place! I had the same experience as Grady. Took my car in and had a…read moretransmission rebuilt $2500, 6 months later it started having the same problem. Took it back in and they did some adjustment when I got it back the shifter would slide around, the transmission couldn't find the gear. Called and was told not their problem because it was in the shifter. Yet, this didn't happen before they "worked" on it. Turns out it was something that needed a small adjustment. They refused, I had to take my vehicle somewhere else. If I could give them no stars I would! P.S. the transmission didn't even last a year!

Long review ahead (TL;DR: We do NOT recommend Hannah's Mastertek because Mike, the owner, has…read moreterrible communication and caused just as many problems as he fixed.) On Wed 9/11, our car broke down and we had it towed to Hannah's Mastertek because it's the closest auto/body shop to us. Mike, the owner, didn't call us when it arrived. I think the car must've arrived at the shop not too far off from closing time, but I still think the professional thing to do would've been to let us know that the car got there okay. On Thu 9/12 we flew out of town, and my husband was playing phone tag with Mike all day. On Fri 9/13 my husband finally got ahold of Mike, who told him we needed a new engine. We gave Mike the go-ahead to start that process later in the day. They're closed on weekends (strange for an auto/body shop), so we didn't get to talk to Mike again until Mon 9/15 upon our return. He told my husband that the replacement engine should come by Thu 9/18. That week, things seemed to be fine. My husband went out of town, but I stayed home. On Tue 9/23 I started playing phone tag with Mike, and when I eventually reached him, he said it could be ready that evening or the next day. I requested to have the car fixed by that evening because I would be going out of town again the next day and still needed to drop off our pet at the pet hotel. Later that day, he called saying it wouldn't be ready until the next day, but that he would come in at 7am and have it ready by 8. On Wed 9/24 I called Mike around 9am and had to call again around 10 to actually reach him, and he said he needed more time. It sounded like it would be ready by the time I needed to leave, and I left the house around 10:50 to physically check on the car. At 11:00 when I walked in, he said the car was not ready. I let him know that I needed to leave within the next 15 minutes and when he said he needed more time, I reminded him that he's the one who said it would be ready. He did not apologize. I asked if he had a rental car, and he said that he did, but it had no plates. After a few mins as I frantically looked for a rental myself, he offered me his truck instead. I had left him know that it would be about a 45 minute drive out to the pet hotel, but 3 minutes before I arrived, he called asking if I was on my way back. He said the car was ready (go figure), but after we hung up, I decided I wouldn't have enough time to get the car and drop it off at home before my flight. I called him back a little later to say that I'd need to leave the car at the shop and my husband would pick it up when he came back. He cut me off right away to tell me again that the car was ready and I had to talk over him to tell him the new plan. He said that was fine, but apparently while I was in the air, Mike called my husband to tell him the car was ready to be picked up. The man doesn't listen! On Mon 9/30 when my husband went to pick up the car, Mike admitted that the replacement engine didn't actually come until Mon 9/22, which would explain the delay. Mike refused to negotiate the cost with us. The same day, my husband had to buy a replacement battery, and after installing it, the "Check Charging System" light was still on, even though it should have reset right away. Mike had told my husband that he tested the electrical and that everything was fine, but clearly, it's not. As of today, not only that "Check Charging System" light still on, the "Check Engine" light comes on, the "Tire Pressure Sensor" isn't working, and part of the car's electronic display turns off randomly while driving. 0/10 do not recommend because Mike wasn't communicative and honest with us, rushed around and caused more issues, and now, we have to go spend extra money to fix his mistakes somewhere else.

I recently sold my auto repair shop that I owned for 29 years and retired. My son lives and works…read morein Denver and I live in Idaho. This information should make you very suspicious about doing business with Mike Hannah the owner of Hannah's Mastertek Automotive Service. My son was driving his car on a Friday afternoon, a few moments after pulling away from a stop he told me his car quit pulling and the engine just revved. He was able to coast into an apartment complex and into a parking spot. After setting the brake, he told me he ran shifter through P, R and D, with no engagement. He shut off the engine, the car would not re-start. He said he could just hear the starter making noise and the engine not cranking. My son had Hannah's do some minor work to his car once and they were close by so I called Mike Hannah the owner to discuss the issue with my son's car. I had a hunch the flex plate was broke off of the crank shaft. That was why the starter would not engage the engine. I told Mike my thoughts. Mike invited me to have the car towed to his shop, they would diagnose the issue and give me an estimate for $180. The car is a 05 Honda Accord 2.4l engine and auto trans. The car was towed to Hannah's the next Tuesday. Mike called late the following Friday afternoon. He told me his tech had diagnosed the problem as a broken timing chain. I was speechless. I questioned him on his procedure and he told me his tech removed the valve cover and engaged the starter cranking over the engine and he could see that the cam was not turning. I asked him if the crankshaft pully was turning and he said, yes. He said when his technician cranked the engine with the starter, the crank shaft pully was turning. He said the engine was spinning fast with no compression. Mike said, that sound was what my son heard. Mike said the engine in the car is an interference engine and was now junk. Mike said he could get me a used engine for $2200.00 plus labor. We agreed the car was not worth putting a used engine in it. I asked him what his diagnostic fee was, he said $180. We discussed trading the car to him in leu of the $180 fee and he would dispose of it for me. I told Mike I would discuss this with my son and get back to him on Monday. That evening I was distraught with angst and frustration. My son told me and I verified with him that the car was running after he coasted to a stop at the apartment complex. My son has raced cars since he was 15 and has been around cars his whole life. I believed my son, and I was still on the page that the flex plate was broken. Mike either lied to me or he didn't verify his technicians' word and work. I called Mike Monday morning and asked him this direct question. Did you personally see the crankshaft pully turning while your technician was cranking over the engine? He said, "Yes." I then asked him that when my son got there that afternoon to take care of the diagnostic fee, if he could engage the starter while my son was looking under the hood to see that the crank shaft pully was turning. He said, sure, I can do that for you. I told him that my son would be there later that afternoon and hung up. TEN minutes later I get a call from Mike Hannah, he was harsh and in a hurry. He told me to get my son's car off of his property. I tried to ask him why but couldn't get a word in. Mike said again that the car needed to be taken away and mumbled something about it being worth $500 running. He then said. "Take it to a different shop if you want to but get it out of here as soon as possible." He hung up on me. I called back 40 minutes later and Mike answered. He was calmed down and let me speak. I asked him what we owed him and he said, "nothing." I told him I would have the car towed out of there later that afternoon. He said, "OK", and that was it. I had the car towed to Point S Auto in Aurora. They listened to me, and their guy did the proper diagnostic work and verified what I thought was the issue all along. The flexplate was broken. A few days later, the car was fixed and back on the road.

These guys were great! We were hit with a $3500 repair estimate from a dealer when we tried to…read moretrade our 2008 Jeep Grand Cherokee and decided to take it in for a second opinion. They had me in and out in 30 minutes with an assessment and quote for the repairs, which happened to be nowhere near the ridiculous amount the dealer told us. We only have one car so coordinating a day without the only family vehicle was tricky but they were super flexible and fast one we could find a day, getting us in right away. Now it's like having a new car, I don't think my fiancé will even let us trade it in anymore! :-) Definitely recommend them for their honesty, professionalism, kindness, and speed!!

GREAT experience. Locally owned and operated - This shop has its act together. I needed a…read moretransmission rebuild on my 2010 Lexus and they had a full understanding of what I needed vs typically goes wrong with this type of transmission. The ladies at the front desk could readily speak "shop talk" without having to get a manager on the line. Every single interaction with this company was first-rate. The job was done on-time and perfectly. If I'm ever in the unfortunate position of needing transmission work, I will absolutely be returning. First-rate, 100%.

This shop performed a transmission service on my F150. The first time it was on a long trip while…read moretowing, the transmission failed and sprayed fluid all over my truck and trailer. The tech at the dealership I was towed to said the transmission, even after losing all that fluid, was still over full and bolts were not tightened correctly. The owner, Todd, denied all responsibility. I wasn't going to leave a review until speaking with him, now I don't think anyone should trust their truck to these guys.

My partner and I had our truck's transmission rebuilt at High Country Transmission in Denver. The…read moresame issue came back a few weeks later, and the shop claimed to have rebuilt it again under warranty but couldn't provide any documentation of that work. We're now 1,200 miles away with the same problem and a refusal from the shop to right their mistake. Very disappointed in the lack of transparency or accountability