Nekiwa,
Here are my first thoughts:
You are wasting valuable above the fold space. I would get rid of the image and move the copy up. I would also move your contact information to the top of the page. If I did not scroll down I would not know how to get in touch with you.
The other big thing I noticed is your page structure. For example your About page URL is
http://optimal-admin.com/?page_id=9. You should change those so that instead of page id it is the page name. This can be done in the settings area of WP.
Your bullets are off on your rates page. The text does not coincide with the bullet point.
I did not check the copy just a quick scan of the structure.