Once trapped, squirrels should be quickly removed from cages and released. Squirrels will readily take up residence in a building if access is available to a sheltered area. Flying squirrels enter homes through small holes around dormers, ridge vents, eaves, attic vents, and similar vulnerable areas. All such holes should be closed to prevent squirrels and other animals from gaining entrance. Be sure that no squirrels are trapped inside.
Adults can cause severe damage by chewing to regain entrance to reach their young.
If chewing persists, heavy, half-inch wire mesh can be temporarily placed over the problem area. Trimming shrubs and vines and pruning overhanging tree limbs may discourage squirrels from causing problems in the home. A squirrel trapped in a chimney should not be removed through the fireplace area because it might escape into the room. Instead, lower a heavy rope down the chimney to provide the means for the animal to climb out. Drop the other end of the rope to the ground to avoid another trip to the roof to retrieve it after the squirrel has left.