/diy/ - Do It Yourself

>>2579214
looking at a house where the former old owner apparently allowed let her cats to piss inside, so there's a strong smell of urine

so for a beg I wonder if this is a very difficult project?
removing the smell of catpiss can apparently get quite expensive
guess I would have to change all of the inside surfaces, like the floors and inside-walls plaster + isolation.
although I don't know if knowing the damage is more extensive than that, like touching the concrete-foundation which I would have no idea how to deal with