Spiders come inside homes primarily for shelter, food, and suitable living conditions. They seek refuge from extreme weather changes such as too much heat, cold, or wet conditions outside. Homes provide spiders with a safe environment—dark corners, quiet spaces, and hard-to-reach areas—that are ideal for building webs and laying eggs. They also come indoors during mating season to find partners and suitable breeding sites. Additionally, if there are insects in the home, spiders follow as they feed on these prey. Entry points like cracks, open windows, and unsealed areas make it easy for spiders to get inside. Sometimes spiders may also be accidentally brought in with items such as second-hand furniture. Thus, spiders come inside because homes offer food (other insects), shelter from weather, mating opportunities, and easy access points.