Last October we 2 yellow jacket wasp nests- one outside our entrance door and the other in our basement underneath our bedroom. Very scary because suddenly for no apparent reason, my bedroom was full of wasps. Without all the details we called an exterminator and the problem was gone within 10 days. My husband and I had to sleep in the living room. GOOD LUCK! I was attacked by one nest when I tried to kill it myself. In retrospect, probably not a smart idea.