When you go to buy an old house, you usually have to have a home inspector go through it before you can get qualified and approved for the home loan. During the home inspection, they will look at just about everything, including the heating, the plumbing, the electrical, the foundation, the windows, and so forth. Some other services that you can hire an inspector to do include checking for asbestos, methamphetamine, and even mold. If you have recently just hired an inspector to do all of these tests and they came back positive, but you still want to go forward with the purchase of the home, then you will have to hire several different cleaning services to help you out.