After an initial scan through the pages, I really couldn't see/hear any accessibility problems with this site.There are a few minor issues.
The site structure should be improved, it doesn't make you wanna click any further. The structure should be made by colors, size or order.Personally I am not that qualified to comment but I can give you a suggestion to the best of my knowledge that may be some qualitative web designer shall provide you the necessary productive feedback.I know one: www.webdesigningcompany.net Rest is all upto you.It doesn't mean that this is the only company I recommend ,but frankly that's the only name that I know that better quality wise.