Raid has a flea killer that kills fleas and eggs. First, treat animals with Frontline and flea and tick collars. Then fumigate the house following the directions on the can. Make sure you spray under furniture, etc. They also make flea bombs that come in packs of three, but I was unsuccessful with just the bombs. I sprayed first with the purple can of Raid under furniture and behind stuff, then used the bombs to get the rest of the house. You might have to repeat the treatment a few days later. BE SURE TO READ THE PRECAUTIONS ON THE CANS!
Hope this solves your problem...it did mine!