Yes you can but not through Titleist (as far as I know). There's quite a few great club refinishers (assuming you in the states). One of, if not the best is a company called The Iron a Factory. I've had some wedges refinished by him and he did great job refinishing them. Try a Google search for them and I'm sure you'll see a lot of great reviews. There's many others but only a handful pop up over and over with great reviews and they're one of them.

Hopefully this posts helps a bit.
Ryan