F
Fekin
It is not upto a customer to say whether the walls or suitable to tile...IMO.
How many times have you turned upto a job and the customer mentioned over the phone etc that the walls have been skimmed/prepped..
Then you turn up and they are nowhere near flat enough, so i think it is a tilers job to check a substrate is good enough for him/her to tile too.
I wouldn't take a customers word for it.
Bang on