The answer to 'why is my spider swarms' is that you may be experiencing an infestation of spiders in your home. Spider swarms can occur for a few common reasons, such as a large food source attracting them, suitable breeding conditions, or a lack of natural predators. Symptoms of a spider infestation include seeing multiple spiders in your home, finding egg sacs, and noticing increased spider webs.
To address a spider swarm, you can try DIY solutions like sealing entry points, removing food sources, and using natural repellents. However, for severe infestations or hard-to-reach areas, it's best to call a professional pest control technician who can properly identify the spider species and apply targeted treatments to eliminate the problem.