Pest Entry: Mice and rats can enter through small openings in the foundation of a building, or can enter underneath doors that lack proper door sweeps. They are also excellent climbers and will use the pipes on the inside and outside of a building to make their way in. Mice and rats can fit into very tight areas and can make it through holes as small as a 1/4″. Environment: They are often found in basements, crawlspaces and areas with lots of moisture like kitchens and bathrooms. Mice are such good climbers that they are also seen traveling to the upper floors of a building and creating nests on various floors, making them difficult to control. They must also find a food source and can often be found in areas where food is stored and prepared. Reproduction: Rodents can reproduce very quickly and are difficult to control as a result. Mice reach sexual maturity in as little as two months and can have four to seven young at a time. This means that a population of mice may pop up almost out of no where, and become a problem quickly. Health/Damage Concerns: Rodents have been known to spread a variety of diseases and can also bring other unwanted pest such as fleas, ticks and carpet beetles into the home. These pests are a big problem in the Pacific NW and cause issues throughout the state, especially in highly populated areas.