The part of the job you will never see
A shower is a controlled leak. Water gets behind the tile by design, and the membrane underneath is what carries it back to the drain. When that membrane is installed badly, or penetrated afterwards by a niche cut in the wrong order, the failure does not show for a year or two, and by then it is inside the framing.
We flood-test pans before any tile goes on. It is an unglamorous step that adds a day, and it is the difference between a bathroom that lasts twenty years and one that is opened back up in year three.
Because we hold the plumbing license (CR-37, ROC #321444) and set the tile ourselves, the person installing the membrane answers to the same license as the person who set the drain it ties into.




