I haven't heard of this method on the Internet.
From the inside out, from the room, and finally to the door.
You can clean your house before renovation, then ask the master to clean your house and move in after renovation.
In fact, if you are worried that your house is not clean, the best way is to ask for the sign of the town house or buy a gossip mirror to hang at your door.
Immortals are precious and infinite people.
Wu Fusheng Tianzun