water leak on tile shower floor

redskins

I need some advice,we have a tile shower floor around two years old.
Water is leaking into our garage from the floor.
I spoke with a plumber and he suggested taking out the tile floor and replacing it with a cast iron shower receptor.
One piece unit that would not be likly to leak.
My other option would be remove the entire floor and check the pan and
board and replace with new shower floor.
Would the shower receptor be a job for a plumber or tile person?
Tile will need to be replaced around the lower wall of the shower.
What is your advise on a shower receptor versus new tile floor?

Just Bill

If it is the drain that is leaking, that can usually be fixed without removing the floor. If the floor is leaking, not much choice. And if the subfloor under is rotted, also not much choice.