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.
To help alleviate pressure, open on a hot water tap, like a sink faucet, nearest to your water heater. 6. Open the drain valve. Once you open this valve, the water will begin to flow out of the tank. Be patient; draining the water heater can take up to 30 minutes depending on how full and dirty the water heater is. 7. Turn the water back on to flush the tank with fresh, clean water. With the drain valve still open, turn the water back on to eliminate any remaining sediment on the bottom of the tank.