I had a sudden bee infestation where the bees were in the attic but entering the house through a light fixture on a 20 ft. ceiling. I called Nozzle Nolen at 10am in a panic. The exterminator arrived by 3pm in a bee suit and placed the bee killing product through the eaves on the exterior roof. The bees were dying within a half hour and all were dead within 24 hours. I would not have believed it if I hadn't seen it with my own eyes. I have contracted for all manner of creepy crawlies with Nozzle Nolen. I know that I'm in excellent hands.