1 Expect to pay an additional $200-$800 or more to remove existing tile and repair any damaged areas underneath, for a total of $1,000-$5,000 or more for a typical bathroom (5'x7' to 10'x10'). 2  For details see, How Much Does a Tile Floor Cost. For details see, How Much Does a Tile Floor Cost. 2  Retiling around a bathtub or inside a shower enclosure can cost $800-$2,500 or more, depending on the type of tiles, total square footage, the amount of repairs needed, any special pattern or border, and local labor rates.
1 Answer from this member: Unless you are very experienced on replacing water heater elements, Yes, I strongly recommend draining the tank first. Otherwise, it could cause a lot of damage. To drain the tank, be sure to turn the breaker and supply water valve off and open any hot water tap in the house.
On an electric water heater, sediment buildup can cause the lower heating element to fail. So flushing offers a payback in lower energy bills and extended heater life. However, if you've never flushed your water heater, or haven't done it in years, you could be in for a nasty surprise. As soon as you open the drain valve, the sediment will likely clog it and prevent you from closing the valve all the way after it's drained.