Certified Transmission Repair of Roswell

Called several local transmission shops for estimates but found Certified Transmission had a good price to replace my 2003 Highlander transmission with a used one considering it had 205k on it. Mario was great and they sent a tow truck on Monday to pick in up in a short time. Once the transmission was delivered at the shop it was installed and I picked up my vehicle on Friday of the same week. My invoice was the same price that Mario initially quoted me. I will definitely recommend certified to family and friends. An honest well run facility

Do not trust them. They do not stand behind their work. I had my 97 C1500 transmission rebuilt there and they did not do it correctly. I have put 4000 miles on it since the rebuild and it recently started leaking. When i got under it I noticed that the linkage was held together by wire and all the transmission pan bolts we not even hand tightened. When I called they said it was out of warranty despite the fact that the job was not done correctly. Now they want me to do a full transmission replacement again. Avoid this place at all cost. I drive my kids to school in this truck so to think that I was putting them at risk because of their terrible work is scarry. I will be contacting my lawyer even if it cost me more than a new transmission in hopes that this does not happen to another family.

Great experience from start to finish. They’re extremely knowledgeable with transmissions, communicated clearly throughout the process, and were very flexible with my schedule. They turned a normally stressful repair into an easy and positive experience. Highly recommend!

This place truly does phenomenal CERTIFIED TRANSMISSION work. I have a 2011 Buick Lacrosse Black on Black. I’m so happy that they fixed it. They have competitive prices. The staff was very hospitable and professional. I received my car in a timely manner. They very communicative through the repairing process. I could not make it to pick my car up and they towed it to me which was very convenient. If you need transmission work this is the best place to come to hands down. You won’t be disappointed. I give this place 5 stars. You will too!

5 stars: Had transmission rebuilt on a 2002 Ford Explorer with 262k miles. Was rebuilt for $2600 (incl taxes) and took 7 calendar days. The technicians are professional. First visit was a Roswell location. Visit 2 and 3 were at Marietta location. Now 3 stars: I’ve just driven it maybe 10 miles and it’s driving well. However, the OD light began flashing again after the RPMs on the engine went up 4. This was about 2.5 miles from my home. Later on the same drive after two stops the OD light flashed yet again, but this time after accelerating after a stop. And again while traveling 35mph. Flashing OD indicates malfunction in the transmission. Will be calling the shop Monday about this. Code reappeared for P0775 Pressure Control Solenoid B. This was the original code that was present when the transmission failed. Update: The following day after picking up the car, I spoke to John and he told me to bring the car in for further repairs. Due to holidays, I had to do this in January. January: They had the car for 1 week. Shop redid transmission and troubleshooted a wire harness. I had to pick it up because I could not continue to pay for a rental (they do not reimburse for rentals although they spend weeks diagnosing and repairing). John told me that next steps are for the "computer to be replaced" and that job is done at another shop. Shop stated they would need more time to send it off and replace a computer (?). I was told to bring it in when it was convenient to make further repairs and diagnostics. Now 2 stars - March: They had the car for 2 weeks. Redid transmission and replaced a wire harness. I have no idea what they did to the car during those twos. At the end John told me they were just going to install a brand new transmission. Unfortunately, I could not leave the car for a third week in a row because I needed it for work and general life, and since they offer no compensation for rentals I had to take the car back. No change whatsoever. O/D light is still flashing and gears are sluggish to change. When I’m ready to leave it for another week so they can install any transmission I have to reach out. 4 weeks in the shop- no fix.