The most common spiders found in Kalamazoo homes include the house spider, wolf spider, and cellar spider. Generally, these spiders are not dangerous and are more of a nuisance. However, Kalamazoo also has occasional encounters with the brown recluse and black widow spiders, which can be more harmful due to their venomous bites. If you encounter a spider you cannot identify, it’s best to exercise caution and consult a pest control professional for proper identification and removal.