I am after some advice.
Just over 3 years into my new build home that I got keys for in October 2018
Rearranged the second room to separate kids off and moved bed to find skirting board wet rotten and a bit of mould which I could clean off.
This is on the wall back to back to the tiled bathroom wall.
So took off bath panel and sprayed everywhere with water to trace narrowed down to two tiles in the corner that are moving and grout cracked between them
Looked a little deeper and found as of 2018 it was mandatory for bathrooms to be tanked, doesn't appear mine is.
Also noticed the tiling had been done and then bath fitted, so not correct way there either as tiles leak floor etc getting wet.
Just wondered if there's anything I can do to get developer to sort this or am I too late?
I've looked around corners under bath and it looks like I've just got blue moisture resistant plasterboard with normal brown plaster over top.
Surely if tanked this wouldn't have gone through to the room behind on skirting area?
The wall itself is completely dry just the skirting and floor it seems.
Would NHBC help if builder won't? is there a way I can confirm they are against building standards, or is it take it on chin and rip all out and do again properly myself. Thanks