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.
Claude, you may need to replace your water heater elements. See the test steps given in the article below: Turn off electrical power to the water heater - you should have done this earlier if you read the instructions above. Turn off power at the water heater circuit at the main electrical panel.