You are trying to have a retro theme, but then other points of your design are pointing at a modern era theme. I like the first idea better by far, I think you can do something different with the P maybe and add something that has to do with repairing heating and air conditioning to it. I just think you need to sit back and look at it and decide whether you want to go with a more modern look, or a classic retro look. The two together don't usually work well they will have conflicting elements. I think the shadow you are using goes well with the retro look, but it doesn't go well with the "p" icon you are using. My opinion? Keep in the direction of the retro theme but add to it with more details and possibly draw up a wrench instead of having the "p" or something similar.