Bio-One of Raleigh decontamination and biohazard cleaning services

Bat Guano Dangerous To Your Home and Health


One of the biggest problems that comes with having a colony of bats roosting in a building or home is the large amount of waste, or guano, left behind. Bats eat a lot of insects, and have a high metabolism, and each bat poops 20-30 times per day, leaving behind a whole heck of a lot of bat poo! These are the primary reasons you want to clean up the guano after the bats are gone:

- The guano can grow a type of fungus that can cause the lung disease histoplasmosis in humans.
- The same can happen to pets too. What Diseases Can Bats Give to Pets? - The droppings just plain smell bad, and in quantity, have an odor that can overpower the house.
- The droppings and urine are corrosive to wood and metal, and can compromise the structural integrity of the building. In short, the wood can rot.
- The droppings and the scent will lure in other animals and insects - I often see hundreds of cockroaches crawling on bat guano.
- Read about How Dangerous Are Bat Droppings?


Here are the proper steps for cleaning bat guano out of an attic or any other space:

Step 1: Make certain the bats are all removed, and the building is sealed so none can get back in.
Step 2: Remove lose droppings on smooth surfaces by vacuum, as seen in the below photo, and scrub such surfaces with an enzyme-based cleaner.
Step 3: Remove all soiled insulation - you're not going to be able to clean it. If it's not too badly soiled, you can just spray it with the cleaner.
Step 4: Fog the entire attic space with the special cleaner. 


Bio-One Raleigh is your go-to, trusted company for the removal and remediation of bat guano. We are here 24/7/365. Contact us with any questions and a free, no obligation estimate.


Karen & Rick Jacobs are the owners of Bio-One Raleigh and Raleigh Hoarding. We offer trauma, mold and hoarding cleanup services including biohazard, blood cleanup, suicide/homicide, feces & bodily fluid, animal waste, undiscovered death, and mold testing & remediation.


We proudly serve North Carolina’s Triangle & Triad areas including Raleigh, Durham, Chapel Hill, Cary, Apex, Pittsboro, Holly Springs, Clayton, Carrboro, Fuquay-Varina, Garner, Hillsborough, Mebane, Morrisville, Wake Forest, and Wendell; as well as the following counties; Wake County, Durham County, Cumberland County, Guilford County, Orange County, Chatham County, Harnett County, Johnston County, Nash County, Franklin County and Pill County. We also provide services to Greensboro and other areas throughout North Carolina/



Bio-One Inc. is the world's first crime scene cleaning franchise. Nationally respected and locally owned, Bio-One has earned its reputation through being trusted to handle the Mandalay Bay mass shooting in Las Vegas in 2017, the Pulse nightclub shooting in Florida in 2016, and consulted on the Sandy Hook Elementary School massacre in 2012. In 2019, Bio-One was once again included in the best and most comprehensive franchise ranking list – Entrepreneur Magazine.