Alex recently worked on my Cobalt 302 – twin engine Penta V8s. He diagnosed the engine problem, ordered the parts, picked them up (together with a special tool required) and did the installation efficiently. He was very reliable – he arrived exactly when he said he would every time. The job could have been difficult but was quick and easy as he has years of experience. I would definitely use him again in the future if I have any issues.

Called to have someone check out my boat and the person answering the phone had a bad attitude. If you don't want to answer your phone let it go to voice-mail. Horrible customer service skills. He doesn't need the money so don't bother calling him. I wish I could give him a zero star..

Highly recommend 
I called Alex and he scheduled a visit to my house for the following day. His knowledge of engines and boats are amazing. He came to repair one item and do to his honesty and ability to communicate with me, I had him go over my boat as I plan on selling. He was extremely diligent and complete. I had him prep the boat and point out issues and help me decide the best course of action. He was involved with my situation and offered assistance in prepping for sale. He is fair, honest, knowledgeable, and easy to communicate with. I have had numerous boat mechanics and no one can match up with Alex’s ability to understand his clients and help them

highly recommend - i had 4 other mechanics leave me hanging and never show up! Johnson Mobile Marine were punctual and on time and fixed my issues. the mech also went out of his way to get the parts as i was busy with work. was knowledgeable, friendly and did NOT take me to the cleaners. i expected to pay more than i did - highly recommended