Ash was almost certain that she had captured all of the surrounding Spirits but she could not know for absolute certainty that she had missed any.
It was still highly required that she should clear her living space in advance before doing anything else.
If she had missed one then it had to be in a location she could not see or reach.
She had waited a little while longer to make sure that there were no longer any around just in case any came out when she thought she had them all.
Her next actions were better suited for a clear environment so Ash kept delaying for a little longer so that there would be no mistakes made.
Inside a fully cleared room of her new home, a large perimeter was surrounded with the ash created from burning some of the wood after it had been with her warding spell to complete the circle.
The ash scattered all around the circle provided a method to keep out Spirits and to contain them.