How Do Snakes Get Into Attics?

Since they don’t have arms or legs, snakes are not typically able to climb and therefore tend to infest homes at the ground level. However, certain species, including brown tree snakes, rat snakes, and various types of pythons, are agile climbers. They can easily scale trees and enter homes via chimneys, vents, open windows, and gaps in exterior siding. Once inside, they like to congregate in spaces that see very little human activity, such as wall cavities and attics.

What Makes Attics Attractive to Snakes?

Attics are popular denning sites for snakes because they are often home to infestations of rodents and offer seclusion from human residents. Rats, mice, and squirrels are all prime sources of food for snakes, and when property owners find snakes in the attic, they almost certainly have a rodent infestation, as well. The upper floors of homes are also consistently warm and provide plenty of cover, so snakes are able to regulate their body temperature and stay hidden.

Control & Removal

Property owners can reduce the possibility of inviting snakes in attics by replacing all broken window screens, sealing gaps in house siding, installing specially designed chimney caps, and trimming the branches of ornamental lawn trees so they do not hang over roofs.

If snakes still manage to set up dens in attics, residents should contact a wildlife control service to handle removal. Many of the snake species capable of climbing are venomous, and because untrained people cannot distinguish between venomous and non-venomous species without getting within striking distance, professional assistance is typically required to remove any snakes in the attic.