Raccoons tend to use the same spot as a latrine over and over, and those droppings can carry raccoon roundworm (Baylisascaris procyonis) along with other pathogens. The eggs are tough and can linger in the environment for a long time, which is why a latrine in an attic, in ductwork, or under a deck gets treated as a decontamination job rather than a quick sweep.
What the cleanup involves
When we clear an attic, cleanup isn't an upsell — it's part of the work. We'd much rather leave a space clean than hide the problem behind fresh drywall where it can still be a hazard.
- Remove the droppings and any soiled, flattened, or contaminated insulation
- Treat and decontaminate the affected surfaces
- Take contaminated material out rather than sealing it inside a wall or attic
- Restore insulation where it was removed
Why not DIY it
This is general health information, not medical advice, but the honest guidance is: don't stir up dry raccoon droppings yourself. Disturbing them can send eggs airborne, and the safe approach uses proper protection and method. If you think you've been exposed, that's a conversation for your doctor.
Cleanup even after they're gone
An old latrine doesn't stop being a hazard just because the raccoons have moved out. The eggs persist, so decontamination stands on its own even after the animals are gone — it's not something to leave until you happen to have another problem.
Common questions
Can raccoon roundworm infect people?
It's a recognized zoonotic risk, which is exactly why we handle latrines carefully with proper protection. For any health concern about exposure, talk to your physician — we handle the property, not the medicine.
Do you clean up even if the raccoons are already gone?
Yes. An old latrine left in an attic is still a hazard because the eggs persist, so decontamination stands on its own even after the animals have moved out.
Why can't I just spray bleach on it?
Roundworm eggs are unusually resistant, and disturbing dry droppings can make things worse by sending material airborne. Proper removal of the droppings and soiled insulation, done with the right protection, is safer than a surface spray.
