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.
With the unit off or unplugged, attach a water hose to the hose bib at the bottom of the water heater. The hose bib is for draining the water heater. Let the cold water fill the water heater as you flush out any sediments or mineral build up. Scheduling a water heater flush once a year can result in extending the life of your water heater. Annually check the pressure relief valve to ensure it is working. Wear thick gloves before lifting up on the test release lever atop the water heater. If it is working properly, hot water escapes via the overflow pipe.