I live in an old farmhouse and the bathroom has plastic tiles half way up the wall and then drywall covers the remaining wall. I have installed a spout that allows for a shower head so I need to be able to still attach that to the wall. And how do I protect the wall once it’s repaired?

I have little black spots on my bathroom ceiling above the shower. How do I get rid of it so I can paint the bathroom.
I should have mentioned that is is on painted moisture resistant drywall. I don’t know if it makes any difference or not.

Our bathroom was redone fairly recently (within the last 5 years) and the ceiling and tops of the walls are spotted with mold! Ewww! I don’t recall that happening before, at least not to this degree. How can I get rid of it? And how can I prevent it? Is there a certain paint or a certain type of drywall that prevents this sort of thing from happening?
And how can I get rid of the mold that’s already there?

I have remodeled many bathrooms but never one from scratch. I have a mother-in-law type house behind my house that I made from the garage. I framed off a room for the bathroom and ran the electric and planned where I want all my fixtures but I am unsure what to do now. Should I put flooring and drywall up or run plumbing first?

Remodeling My Bathroom black mold on drywall how to remove it or kill it?