I have had a look at your website and have already identified a multitude of errors (grammar, spelling, punctuation, content). Having said this, the poor quality of your website's content in terms of grammar, syntax, and layout would definitely make me question the quality of the services you offer. There is too much competition in your working field, so an excellent first impression is paramount if you want to draw in as many customers as possible. Even though I am not a native English speaker, I am freelance proofreader and editor with a strong academic background in the field of English ( grammar, linguistics, semantics, literature). I am conscientious and have a keen eye for detail. I can also provide a sample of my writing upon request.
P.S.: You do NOT need a native English speaker to have your website polished to perfection.