If your water is good for beer, it will be good for wine. If it's not, and you have bacteria in things in it, then it's not good for wine either.
Most people who have water in their homes have drinkable water, but if for some reason you do not, you could boil it or purchase drinking water.
I do not boil my brewing water, my top off water, or my water for winemaking. Our tap water is good, and reliable, and safe.