I don't know if he does fiberglass. But depending what you are working on, he has done some very cool installs. I have countless friends who he has put systems in for. I am running a dual 10" enclosure that he made for a ranger and love it. As soon as I come up with some money he is building me a a custom stealth type box for two tens that go where the stock sub would have gone.
This guy knows his stuff and does great work.
www.subthump.com