The answer to a spider infestation is to first identify the type of spider and assess the severity of the problem. Common causes of spider infestations include warm, damp environments, an abundance of prey, and lack of pest control measures. Symptoms may include seeing multiple spiders, spider webs in corners or crevices, and egg sacs.
For minor infestations, homeowners can often handle spider control through DIY methods like sealing cracks and crevices, removing webs, and using insecticide sprays or baits. However, for severe or recurring infestations, it's best to call a professional pest control technician. They have the expertise and specialized equipment to properly identify the spider species, locate nesting sites, and implement comprehensive treatment to eliminate the problem.