I make a lot of knives for chefs.I don't know many who would have someone else sharpen their knives. To most that would be like having someone "service" your wife.
One Korean sushi chef has me only grind in the bevel (there is only one) and he sharpens it his own way. When I would make a knife for him and deliver it hair poppin' sharp he would frown and go to the back. He would come out 15 minutes later saying, "Now it is sharp right."
Invest in a couple of books and a video on sharpening.It will teach you how to make the edges do the work you want. There are several good sharpening combo units and rigs out there, but nothing replaces an understanding of edge geometry and sharpening theory.Most knife supply companies,like Texas knife Supply, carry the books and videos.
Stacy