Looks pretty good to me.
I see you have an Alexa rating already!
I love the rotating testimonials on the home page
And the effects of the drop down menus are great
On About Us you talk about John first ,but who is john.
You need to put that paragraph about him further down and say that the company is owned by xxxx and xxxxx
Down the left hand menu painting interior and exterior needs a space between the dash.
I'll pay to put a banner on your site - pm me.