I did not have a real bad infestation of fleas but I called Terminix to spray for precautions to get rid of them completely. So far I have not seen any in the house or outside. I will continue to have the service each month to keep them away. The technicians I have had at the house are very professional and are very knowledgeable about their job. I had problems in my attic and Terminix inspected it and gave me an estimate to close up all points of entry and spray new insulation in the attic.