he has obviously focused on the things that matter the most, getting customers. Your vans look great, and so does your setup. But to give you an honest opinion, the free urls never give a good impression in my mind, most people who would check your site are fluent enough to know it hasn't been professionally done.
I don't have a website, and I dont feel it is right for at the moment but have focused more on things like yell and google dirrectories with some success. I think the most effective form of advertising is vehicle signs, uniforms etc. Which I would focus on first if I was you.
Get the vans done in green with the oval logo, that looks good, something the says your a window cleaner on there with a number etc, also logo and number on the back of tshirts is a good idea.