Oh boy! good luck... no clue if mint works on squirrels but in my home I have a electronic noise maker that plugs in for bugs and vermin... doesn't bother the dog... or cats, but then, it doesn't seem to bother roaches or mice much either... I suspect one unit for the whole house ain't enough for basement and upper housing area...LOL!
Martha (AKA RVM45), Bob, and Bess the Border collie
22'Honey Sportscruiser on a 1988 Ford Econoline.
Sometimes towing a powered Parachute.