It sounds like you've come to know our brand, Brenda, so I'm sorry to hear about your recent experience. Raid® Concentrated DEEP REACH™ Fogger is formulated to effectively kill spiders. However, since spiders often make their homes in secretive, undisturbed places, we'd recommend getting a customized Raid® Defense System for complete elimination. To learn more, I encourage you to visit: http://bit.ly/1kzbpEe. And if we can further assist, feel free to give us a call at 1-800-558-5252, weekdays from 8 AM to 6 PM (CST). Your reference number is: 018581380A.