My sidewalks in my front yard are sloping (in the wrong direction). I'm already regrading the whole front yard (doing it myself, by hand) and was wondering what the best way to fix the sidewalks is. My plan was to rent a concrete saw, cut along the seams, and lift each block out so that they can be replaced after building up the soil underneath. Is this the best way to do it? Or is there another way that I'm unaware of?