my then neighbor had the same problem,a mother squirrel and her babies in the roof.
when i saw them covering the openings with chicken-wire,so the mother could not get to her babies,i called humane society and noahgrey came to help out.
the renter even had a trap in the roof where 2 babies were caught.
well,my little heroin noahgrey,made him release the babies outside and let the others out to their mother.
luckily they were big enough to make it.
depending on how big these babies are,maybe they will make it,maybe not