To start with, spray the feces and urine with a disinfecting solution and wait for about 5 to 20 minutes to let it soak. Thereafter, pick up the piles of feces and put them in a plastic bag. Heavily soiled insulation will have to be removed and replaced – and for this, you may require a professional. Thereafter, remove every sign of nesting materials. Similarly, any other form of food or waste that was brought in by the raccoon has to be removed.
Dealing with the urine isn’t as straightforward because it soaks into the insulation or drywall or even wood in the attic. Similarly, not all feces will be accessible by hand. That’s why you have to fog the attic with a sanitizing antimicrobial spray to kill off every fungi and bacteria present.