Should I Kill House Spiders?
Most house spiders are harmless and help control flies, mosquitoes, and other insects, so killing them is usually unnecessary. The choice makes more sense when a spider is known to be medically significant, repeatedly appears in sleeping or food-preparation areas, or safe capture and release is impractical. Weigh identification, risk, comfort, and humane alternatives before deciding, and consult a pest professional if you are unsure or dealing with a heavy infestation.