The answer to 'how did spider get in my house' is that spiders can enter your home through a variety of ways, such as cracks, open windows, or even being carried in on items you bring inside. Spiders are attracted to warm, dark, and humid environments, so they may find their way into your home searching for shelter, food, or a place to build their webs.
Common causes of spiders getting into your home include gaps around windows and doors, cracks in the foundation or siding, and openings around utility pipes or vents. Symptoms of a spider problem may include seeing spiders crawling around, finding spider webs in corners or under furniture, or noticing an increase in the number of insects that spiders feed on. To address a spider problem, you can try sealing up entry points, removing clutter and debris where spiders hide, and using natural repellents like essential oils. However, for severe infestations or if you're unable to effectively eliminate the spiders on your own, it's best to call a professional pest control technician who can properly identify the species and implement a comprehensive treatment plan.