The answer to 'why is my spider infestation' is that spider infestations are often caused by an abundance of food sources, like insects, in and around your home. Spiders are attracted to areas with lots of potential prey, as well as dark, quiet spaces that provide them shelter and protection. Common signs of a spider infestation include seeing multiple spiders, finding spider webs in corners or under furniture, and noticing increased insect activity.
To address a spider problem, you'll want to start by eliminating their food sources. Seal up cracks and crevices, remove clutter, and keep your home clean and dry. You can also use DIY spider repellents like essential oils or diatomaceous earth. However, for severe infestations or hard-to-reach areas, it's best to call in a professional pest control technician who can properly identify the spider species and apply targeted treatments.