What this video covers
This is the cheap end of the scale, and the clip shows what it actually looks like.
A patch of ceiling mold above a shower, discoloured grout lines, staining on a window frame. Everything is on the surface, on non-porous or semi-porous material, and nothing has moved into the structure behind it.
The takeaway
Damage at this stage is a weekend and a modest spend. It is worth acting precisely because it looks minor, since the same problem left alone is what the more expensive videos in this series are about.
Read the full written guide: How to Remove Mold from a Bathroom Ceiling.