Talk about honest, go above and beyond! We wouldn't have anyone else work on our Dodge diesel truck! They fixed our air conditioner three years ago and when we took it in because it wasn't working, it was just a pretty easy fix they fixed it free of charge! We have had them replaced our transmission and other projects on our Truck! The value they bring to the table is they tell you exactly what needs to be done & they do not sell you something that doesn't need done. They give a 10% discount if you have served our country! Talk about all American! If I could give them 10 stars I would! Honest, patriotic, quality, fast service, easy to deal with, offers top notch parts with warranties & keeps up with all servicing of your vehicle! Goes above and beyond! read more

Certified Techs Auto & Diesel Repair - Our Truck, we trust no one else with it! - Auto Repair Near Me - Spring, Texas

I was recommended this location by a few people... found out what was wrong with my truck after some extensive diagnostic and repairs. I'm back on the road in a weeks time which was pretty legitimate for the timeframe of work that they had to do,some of the other shops quoted me two weeks because of back log time... read more

Dropped off my truck after seeing the great reviews and these guys did a great job of communicating with me along every step of the way and were super honest about everything and did a great job! I will be using these guys for anything in the future that comes up with my truck. read more

Certified Techs Auto & Diesel exceeded my expectations in fixing my F250 diesel truck. Johnny and Chris showcased precision and expertise, swiftly diagnosing and resolving issues. Impeccable service, transparent communication, and fair pricing make them my go-to for any auto or diesel needs. A dependable diesel shop in the area is hard to find, and you cannot just take them to anyone. These guys will diagnose properly and repair properly, the right way. I highly recommend! read more

Certified Techs Auto & Diesel Repair - Auto Repair Near Me - Spring, Texas

Great honest guys. Basically replaced my whole AC system at a great price. End up being a little under what they had originally quoted 06 Ram 2500 5.9 Cummins read more

Once again these guys went above and beyond my expectations as always, brought my Truck back to them, this time to get my Transmissin repaired, but Johnnie with his expertise said it would be more benificial to get a new one, now keep in mind that my Transmission was only 3.1/2 years old from a previous Transmission place which I wont name, and it was going out, lets just says am back rolling again and they repaired some things I didnt even ask but needed at a reasonable Cost., Man All I can Say Is Im Glad I found CERTIFIED TECH AUTO REPAIR, These Guys Are Honest above all else and Thier Work Speak for Itself, Thanks Again Johnnie, Chris and Nathan. MY MECHANIS for LIFE. read more

Ford dealership wanted to keep my car for a week just to put me in line for repairs. Certified did the work in one day and at a little over half the cost. They explained the work done and no hidden costs. I would recommend them for diesel repair at a reasonable cost and timeliness. read more

This may be a lengthy review but it's important that you read it all the way through to understand the problems and the result and finally the solution. After taking my 2000 F350 7.3 L diesel truck to a location that had Transmission in their name to replace a rear carrier bearing on my drive shaft "I would have thought they would have had no problem completing that task since they have to deal with Transmissions all the time and the drive shaft connects to the transmission." my mistake I had brought many cars Gasoline by the way to them and had pretty good service but when I took the diesel truck to have the rear carrier bearing replaced they put in the drive shaft backwards neglected to put the boot on and didn't time the knuckles right on the drive shaft so there was a serious amount of vibration they're "MasterTech" assured me that it was installed properly so upon suggestion from a friend of mine I took it to another mechanic who told me that he also was certified and drove a Ford 7.3 himself and was familiar and and when he looked under my truck and saw immediately that the driveshaft was in backwards and the boot was missing I had confidence that he knew what he was talking about so I let him fix that and also he told me that I needed a sensor replaced and that he only used Motorcraft Parts. Come to find out he put a Dorman sensor in there and instead of replacing the wiring harness he jury-rigged a wiring harness for it and so I had to take it to someone else. Diesel Tech got very high ratings and so I decided to bring it to them and after a quick inspection they told me that the wiring harness was rigged and that CPU sensor was Dorman not AutoCraft as I had been promised by the second mechanic I took it to who stated he only used motorcraft on fords. Not to mention that they charged me $380 for a Dorman product which I could have gotten at O'Reilly for $93 even the AutoCraft part would have been only $139 and I understand you got a mark stuff up a little bit to make money I'm a chef I don't charge you the same price for a steak that I pay for it but really that's a bit of a markup so Diesel Tech replace that part did a whole bunch of other work for me glow plugs made sure my front end was right replace the pitman arm the steering gear box with fair pricing. My front bumper was lose they fix that for no charge. These guys are thorough, competent, nice, they don't seem annoyed when you walk through the door into the clean shop they're very thoughtful in their diagnostics I would not suggest you take your truck especially if it's a diesel to anyone else but Diesel Tech. they work on all kinds of vehicles but for diesel there no other choice. and I thought for the quality and piece of mind there prices are more than reasonable. O and I've been talking to Chris one of the partners about doing some upgrade putting a chip in and so on he's like "you know you got to do it the right way you got to put it better torque converter upgrade the transmission would be a good move make sure that your Boost is up to your needs is a lot more infrastructures you can't just throw in a chip in there with out making sure the extra power isn't gonna jack something else up, and that's what I feel when I work with these guys that they're not going to give me the runaround they're going to give me the best advice and they're not going to let me do any damage to my truck they're going to make sure that it works right, when do you find that today in today's world they're really good guys Ask for Johnny he is a real straight shooter. Chef Matt read more

The ONLY Honest auto repair facility left in the north Harris County area. They also give Military and First Responder Discounts!!!!! Great service at a Great price. Send atl of your family and friends over here. Johnnie, Chris, and Hunter are the best in the industry. read more

These guys are amazing! We had some really odd electrical issues on our 2013 GMC Diesel Dually and took it here after reading other good reviews about them and we were very happy with everything. They didn't do anything unnecessarily & kept us updated. It's been about a month since the repairs and no further issues. Perfect repair at a fair price - they have a new lifetime customer!! read more

Awesome auto repair shop that specializes in diesels. Fair prices.knowledgable and quick turn around. 10 percent off labor for vets!

My husband and I just moved from Las Vegas and we were super nervous about taking our 2003 F-350 anywhere. We asked people at our church, friends, family and really no one seemed to have a good diesel expert to help us with several issues that arose after our truck was stolen. After a cursory google search of mechanics in our area we were shocked to see a diesel repair shop right around the corner from us with 46 5 STAR reviews on Google. I was thinking...I guess you could manage to get some fake reviews...but 46??? So headed over and were so so happy with our experience with Certified Techs. Johnnie made us feel comfortable the moment we walked in. They fixed and diagnosed several issues within one week and even ended up sending back a part they didn't ultimately need. They did the absolute most for the absolute minimum and we are super stoked to have an honest and reliable mechanic in Houston now. And I can say...no matter how far we move from this area...we will be coming back. read more

Great work from Johnnie and his team at Certified Techs. Had a new front end done on my car and the work is top notch. Turn around time is fast, they take time to educate you about the issue, and NO BS. read more