What's involved in relocating washer/dryer hook-ups?

I have a new washer and dryer which are both front loaders and I would like to put a counter top over them. Problem is the hook-ups are in the way. Can I relocate them and if so where?
If I don't do this, how much should I expect to pay?

thanks!

You can lower the pipes in the wall, open the wall and see if this is possible.

Cost depends, call and gets a few estimates from local plumbers.