Looks great but I think the information is a bit lacking. The information about your company is great, it really conveys professionalism, but if I'm looking for a plumber online I want name / number / cost / time / where. I'm thinking: can you come to me? when? how much will it cost? I don't think your page answers those questions very well...
The second problem is
SEO, but we'll leave that until you have time to expand your website. The question is, what's your website worth if nobody visits it?