I'm no website expert, but here's a couple things that quickly come to my mind. The 3 pictures on the homepage, I would change them to full on shots of completed details. Also, they should all be the same size. As a detailer, I know what I'm looking at, but to the average person, I don't think they would see the 50/50 on the black car, the headlight restoration pic isn't really self explanatory and it's hard to see the red before and after over the blue car, and 2 year garantee for what? I don't think the before and after is drastic enough for the average person to tell one headlight is restored and the other isn't. And the pic on the right, I'm just not sure what you are trying to show there.
On your FAQS page, the first question especially, there's TMI, people don't care that it's difficult for us to carry water or we don't have a vehicle big enough. It sounds like you are making excuses and that puts people off. I would get rid of the second question all together, it sounds like you are trying too hard to justify something. IMO, there's just too much that nobody cares about, people want to know what can you offer, and how it can benefit them. Too much info can lose the sale just as fast as not enough info. I think you have too much going on there. Just keep it simple. Nobody cares how much your website costs.
On your about me page, get rid of the part where you talk about how much it costs to run the business. Keep it about you and about how your service can benefit your customers. Nobody cares how much it costs to run the business they are looking to hire.
Keep it to what you can do, prices, some things about you and maybe add some helpful tips the customers can use or link to some good detailing articles or even write your own. Leave out anything that doesn't matter to the customer that doesn't have to do with you detailing their car.
When I made my first website I also put too much info, and what I'm telling you here is pretty much the same thing that some people told me, so I simplified it and now getting better results from it.
Hope this helps and it's just my opinion.