We had raccoons once, what a mess & they are nasty & viscous if cornered.
I got rid of them using 1,4-dichlorobenzene (moth balls).
It will get rid of just about any varmit. (Snakes, raccoons, birds, Insurance salesmen etc)
I believe it is a suspected carcinogenic material , so use gloves & avoid breathing the odor.
Take 3 or 4 moth balls , rap them up in chunk of J-cloth & attach a length of fishing line or twine.
Toss a couple of these into the offending area with a length of line strung out so you can retrieve the moth balls after the offenders have departed.
It probably wont kill them, but they will not like it
Guaranteed or you get your varmits back