We are not sure yet. Waiting to see what happens as the treatment didn't happen as it was told to us. I should not have had to repeat and show in the house the point of entry for the carpenter ants. Secondly, this is an 80 ft long house and he comes with a tiny flashlight. Good thing we have a light in the attic. The ants were coming from the skylights. Saw a few in the family rm today. 7 days. will call Thomas tomorrow.