When pets destroy carpeting, not only does the carpeting need to be replaced, but so does some of the stuff underneath the carpeting. Here, you'll find a few tips to help you get the old, pet stained carpeting out of your home, as well as the odors that it will leave behind. When you've finished, and the new carpeting has been installed, not only will the gross carpeting be gone, but so will the smells that go with it.