Winter is upon us. Mice are looking for shelter and your home is their sanctuary. A female mouse can produce from 4 to 8 litters a year; each litter producing 6-8 mice. A pest control company that simply places snap traps or other forms of traps will not completely resolve your mouse infestation. Even if the poison, on the traps, kills the mice that are currently in your home it will not deter mice from entering in the future.