Cute and cuddly except for when they multiply around the foundations of homes and building. These animals also burrow small holes ranging anywhere from two to three inches in diameter, usually under sidewalks or around foundations,. This burrowing causes dirt to be unearthed under the structure, usually concrete or brick structures, causing it to sag, crack and collapse.
Rodent proofing around the foundation of a home or structure is the best defense against chipmunks entering the building through small holes and cracks. It is usually necessary to trap and remove theses animals from around the foundation of a structure first, before sealing hols, cracks and other opening. In most cases this can be done in a few short days.