Seal them off with metal mesh to prevent the squirrels from making their way back in.
Squirrels in my walls and ceiling.
Once they are living in your attic squirrels will investigate to see what they can find and often crawl into the walls.
Will squirrels chew through the ceiling or wall squirrels will chew through virtually anything they see.
It is imperative for them to chew in order to grind down their constantly growing teeth.
Because squirrels enter through the roof line according to the new york times they almost always make themselves at home within the walls or ceiling of the attic.
But squirrels can get almost anywhere in the architecture of a house the eaves the walls and the ceiling the gap between the 1st and 2nd floor for example or a drop ceiling or a ceiling with a flat roof and no attic gap etc.
Remember squirrels can go through holes as small as 1 5 inches in diameter even if it doesn t seem likely these creatures are surprisingly squishy.
Find the entry points make sure the young are removed fix all secondary entry areas mount traps on the main hole repair damages.