Okay, we pulled up our carpets. Have you tried mothballs in your vacuum bag? That supposedly kills them. The only time ours have a flea or two now is when they come home from the groomers. This has happened only twice but the Vet gives us a pill that kills any that are on the dogs. Works wonders. You can only give it once every 30 days or more and I can not think what it is called.