I had to. My wife is an animal lover, and she rescued 3 kittens she found on her mom's property last August. But they came with some more freebies: FLEAS!
And even when we had them in the basement with a window so they could get light, we had some serious problem with the fleas upstairs. We had no choice than to get rid of the cats and the fleas. Here's what we did (just to let you know, is a tedious process):
1. Cats out
2. We have other animals, including birds, Guinea Pigs and a 10G fish tank. So they had to go out to my in-laws.
3. Take out all non-canned food, silverware, dishes, etc out.
4. Cover beds, furniture, electrical equipment, etc with plastic.
5. Bomb the place and let is
sealed for around 2.5 hours.
6. Came back home, opened windows for another 1.5 hours and went out again.
7. wiped all hard surfaces, specially kitchen area and food storage.
8. Threw away all plastic covers.
9. Brought everything back in, including animals.
10. Good-bye fleas
Don't stay in your place one the bombing has started, and take all animals out. Hope this helped...