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.
Turn off the breaker to your water heater and then turn off the water supply. Wait for 20 to 30 minutes for the water in the unit to cool down. Attach a garden hose to the drain valve at the base of the unit, and run the other end of the hose outside, into a large bucket or into a nearby tub. Slightly open a nearby hot water faucet in the home. Then open the drain valve and let all of the water drain out of your water heater.