How do you evict snakes from a house?Q. Help! I am inundated with snakes. I know they are garter snakes and harmless, but there are a lot of them in my cellar and in my attic. Is there any way to get rid of them? One person suggested we put mothballs in the attic and cellar. We did that, and we gagged a lot, but they didn’t bother the snakes one bit.