For the most part spiders stay to themselves, and aren’t aggressive unless they feel threatened. That being said there are a couple of spiders that can have a nasty bite and reaction – namely the black widow spider and the brown recluse spider.
Other spiders common here are jumping spiders, wolf spiders, and cellar spiders (the ones that make those webs you walk into when go into the basement or crawl space).
Spider populations usually peak in the fall, so the best time for a one time service would be September or October, but your situation might be different. If you’re being overrun by spiders give us a call to set up a service.