Yes, through the use of exclusion devices like galvanized screen and door guards. Rats can enter through holes as small as one half of an inch, and mice can enter through openings half that size (i.e. one quarter of an inch). This makes it important to note that the smaller the pest, the more challenging it is to seal off all the points of entry. When sealing a home against rodents, it’s important to do it after all the rodents have been eliminated, so as not to trap them inside. Once Hole-In-One Pest Solutions has achieved this, it’s important to identify any existing or potential points of entry (i.e. access points). These are then sealed with 1/4″ galvanized screen (eg. soffits, pipe openings and obvious cracks and crevices around a structure).