The answer to 'signs of spider' is that common signs of a spider infestation include seeing live spiders, finding spider webs, spotting egg sacs, and noticing small holes or entry points where spiders may be getting inside. Spiders are generally harmless, but some species like black widows or brown recluses can be dangerous and require professional pest control.
Spider infestations are often caused by an abundance of insects that spiders feed on, as well as cracks, crevices, or other entry points that allow spiders to get inside your home. You may notice more spiders during the fall when they become more active looking for mates and shelter. Homeowners should seal up any potential entry points and remove food sources to discourage spiders from taking up residence.