You can clean painted walls with warm water and an all-purpose cleaner, but to get rid of smoke stains and smells from the wall, you should spray warm vinegar on the stains or ammonia mixed with water. For tough cigarette stains, use trisodium phosphate to get rid of them.
I am very satisfied with the service I received from Squeaky Cleaning.
The communication with the cleaning professional was very simple, and she did an excellent job. I could tell she had been trained professionally and did not cut any corner....