Great mechanics and the owner Tommy is awesome and accommodating and always does a great job! They get the job done in a timely manner. Can’t say enough good things about this place! They are the best!

These guys are great, honestly! They where timely about getting back to me to inform me of what was gong on with my vehicle and honest about the diagnosis. They were fair about the price and were able to get my car taken care of a lot more quickly then I expected. I highly recommend them and will send anyone else I know with transmission issues to A-1 transmission.

Ray was the most helpful mechanic Ive met yet. So grateful to him for helping me with my truck!

Always willing to help you out with your vehicle very personal experience

Great shop. Completed a gear change for my truck. This is an old-school shop that you can trust.

Great shop to work with, very reputable, work was good, no nonsense

Tom is awesome!!! I was on Rocky Mountain race week 2020 and my tail shaft housing in my th400 was bad and I called him last minute and he told me to come right over, he took a brand new one of a transmission that he just built and sold it to me for small fee and a shirt to represent my car!! He was the only reason why I completed Rocky Mountain race week!!! Humble and just an all around awesome guy! Recommend 100%

These guys are great, we had an issue 10 days after they repaired our truck, they not only didnt charge us but upgraded the part...forever customer

Tom is the man, I had my transmission serviced ese wheee due to cash flow, they did a mediocre job, took it to Tom and he fixed it within a couple hours, great humble guy I will return when I have any transmiss Issue. Thanks Tom cold ones on me !

Thanks to Tom for taking on a project on my husband’s1985 Bertone X-19.Tom researched the car, as it was only built for 5 years. He took the time to call other mechanics, and resolve the transmission issue. I would recommend A1 Transmission & Gear to everyone. My husband swears by Tom’s work, and won’t go anywhere else!

Brian is awesome. No hassle. Lower prices than most. Timely repair. I bring all of my fleet here for service. Cant beat their prices and respect for your rig

I was beyond happy with my experience with A-1. The staff was professional, honest, and personable. They worked incredibly hard to help me navigate a difficult situation and presented me with all of the information I needed to make an informed decision. A-1 is outstanding!

Had a great experience with Tom!! If you ever need some quality work done come see them!! I promise you they won’t steer you wrong and they will make sure you are taken care of!! They care about their customers and that is hard to find nowadays!!

Quick diagnosis and quality work!! Would recommend them and will go back again when needed

Excellent service.

Awesome guys we was in a bind in the beginning of race week and they helped us out no questions asked.

I cannot say enough good things about this business. 18 months ago the transmission went out on my 04 Ford F150. The truck has pretty low miles for its age, so I decided to have A1 transmission replace it with a rebuilt one. I had no issues with the rebuilt transmission until last week. One morning I got in the truck and the transmission was slipping in every gear and leaking fluid badly. I ended calling A1 transmission and they told me to bring my truck down. It turned out the torque converter on the rebuilt transmission had a hairline crack and a couple of the clutch bands were worn. Tom replaced torque converter and the bands and did not charge me a penny for the parts or labor. I don’t know a lot of business that would honor their work from 18 months ago like A1 did. I will be customer of theirs for life now. If you need transmission work done, then do yourself a favor and go to A1 transmission in Golden. They do good work and are honest. You cannot ask for more than that.

I wish all shops were still like this! Just an honest shop with an honest owner. This shop is like stepping back in time. No cozy waiting room, no lattes, just a guy that knows what hes doing and does what he says for how much he said.

Tom and Matt are such professionals and totally personable. They explained everything to me thoroughly, and had my vehicle ready to go before I even expected it. The prices were the best, and the quality of work was superb. My car runs like new. I couldnt be happier with the service. I will never take my car anywhere else. Customer for life.

Very good service and quick diagnose. I had a transmission problem in my Toyota and they fixed it quickly. Thank you!

Tom does great work and backs it up with a guarantee. Fixed my auto transmission over 1 year ago and no issues at all. Reallly nice guy too.

I cannot recommend Tom and Matt at A-1 Transmission enough. Just a couple of weeks ago I was in the process of moving to the East Coast when my transmission went out on my car. I had a pretty tight deadline of when I needed to leave Colorado, and the guys at A-1 were able to help me with getting a rebuilt transmission and installing it in less than a week, even when it mean working overtime to get it done. On top of everything, they ended up being the best price of anywhere I received a quote. Everything is still running smoothly, even after the 2000 mile road trip the same week the transmission was installed! If youre looking for a reliable and trustworthy auto shop, theyre your guys.

Great service. Fast and efficient diagnosis/repair. Fair price.

My experience overall was great. I was on vacation and was headed back from Vegas to Minnesota. When I was Going down I-70 my transmission went out and I had to decide to where to go in a hurry. Being Saturday nobody was open but I looked at 5 or 6 shops near me and a-1 had the best reviews so I took a chance and had it towed their. The next morning Tom called me and was completely cool with it sitting tell Monday. Hearing my story he then pushed aside other work and ended up being able to get me on the road again by Thursday evening! I proceeded to drive 1300 more miles and she still drives like new. I was on a budget and he cut me a deal that helped me out considerably and gave me a two year warranty! Thanks again Tom, will recommend you every time.

I’ve been taking my car to A-1 for years. Nothing but good experiences. I’d highly recommend.

I dont know I have taken my vehicle there and one didnt get fixed. My truck has had problems since Ive taken it. Tom was very kind to reevaluate my problems with my truck. I appreciate the second time of his service and very politely resolving the problem. I got to go see my mother 500 miles away and it ran pretty well. Thank you very kindly Tom. You are awesome.

I took my 2008 Honda CR-V to Tom because it appeared to have a small leak in the transmission. They checked it our and found a very small leak, but it was so insignificant and considering the age and milage of the vehicle and the cost to repair it, they just recommended I add some transmission fluid periodically to keep it running. They effectively talked themselves out of an expensive repair job so I could save some money and didnt charge me for their time! Anyone who does that earns five stars in my book!

Weve been using Tom and Ray for years and years. Theyve always treated us great

Theres a lot I can say about Tom and Matt. All positive. They were fixing something small in my Honda Civics transmission. I dont know anything about cars but they took the time to explain to me what was wrong and did it at a very reasonable price. They are those honest mechanics that you are looking for! Dont be intimidated by the messy entrance. Walk in and they will treat you like family

We took our new (used) car to A-1 to get it checked over. They were great to work with - got us in quickly, spent a lot of time with the car, and didnt charge us for the check. We will definitely be returning to them for oil changes and repairs in the future.

Tom and his team were Fantastic. They repaired my 1993 F150 XLT shifting and eclectical issues faster then expected and at the lowest end of the price range he quoted. I will be back - they let Me know everything that was wrong, which mattered, which didnt, and which could wait. I Highly recommend them!

Matt and Tom are great. I found these guys through a simple google search and I lucked out. I was having issues with my truck, and they made time to check it out the day after I called them. They diagnosed my problem, and even though it was some really bad news, I respected their honesty and sincerity. Not to mention they did all diagnostic work for free. They even stayed open late into the evening so that I could make it after work to chat with them/better understand all the issue. I would definitely go to these guys again.

I have an older jeep with a myriad of custom parts. I needed a mechanic that really knew his stuff. The last place I took it to had not been able to sort out my transmission issues. Tom is the owner who actually works on your vehicle so you get the brains of the organization working on your vehicle. A couple of hours later it was perfect! Cost was also VERY reasonable. They have a customer for life!

Have an older model ford ranger to many miles on it Tom fixed me up in a very short time at a great price , couldnt be happier, if you need personal service at a reasonable price see Tom at A1 , I will have all of my cars transmission service done here. NO DOUBT HE IS THE MAN.

Passing through Denver and had what I thought to be a transmission problem, had to leave the vehicle there on a Sunday. Transmission ended up not being the problem but they looked at it and Tom was easy to work with over the phone.

This is a great place. Although bad luck on the highway resulted in me finding A1, its been a very fortunate thing overall. These are honest folks and world class problem-solvers.

Great place to take your vehicle. They provide top notch service and wont try to sell you stuff you dont need.

This place is great!! They take care of you without hitting your wallet for un nessasary charges. I will always bring my cars here

These guys are fantastic, they not only did a great job on my truck transmission, and came in under the estimate, but from the first time you meet them you feel like you have known them forever and can trust them, cant say enough good things about Matt and Tom, just a couple good ol boys.Lee Shultz

Knowledgeable mechanics, great pricing, and trustworthy.

My Stratus was having issues upshifting after i replaced the battery, and I took it in to an auto repair shop who told me Id need to rebuild my transmission. I took it to Tom, he checked it out same day and told me the problem was the computer. When I took it to a dealer, it took them three days to find the same problem. So, down to the point, Tom is awesome, friendly, and he knows his way around a transmission. Recommending him to all of my friends.

Car broke down that was fixed wasted money put in it. Had to replace parts

I have taken my company trucks to Tom at A-1 Transmission for the past 12 years.The honesty and integrity is amazing ! I have to say I have never been treated better , Tom & Mat did not ever make me feel stupid when I asked questions about the repair.The price has always been very fair.I always recommend them to others if they have transmission troubles.Always very happy with service!

I have used these guys for many many years. I trust them 100% and will continue to use them

Was referred by Applewood Auto on Garrison to Tom and Matt I took my Bronco to them for slip and to upgrade,they made recommendations for my needs,upgraded and over one year later still doing the job.Thanks Guys

Good company to do business with

These are the only guys I have work on my vehicles. Including, I take all of our company vehicles there for the routine maintenance.