Flooring Tile - Tile over tile?

Can I install ceramic tile in my bathroom over existing ceramic tile? The existing tile is in great shape just don't like the color. Thanks, jkoz

You can install tile over tile. There should be no loose tile, cracked tiles or loose or missing grout. The old tile should be rock solid. Make sure the old tile and grout are free from grease and dirt (get it as clean as possible). If the old tile is glazed you should rough it up. Use a good flexible modified thinset like TEC superflex. You will have to deal with the added height of the floor when you reset the toilet (you can't tile around it). You can add a flange extender or use a thicker wax ring depending on how recessed the flange is below the finished floor. You may have to cut the door some also.