You have roots causing a block in your drain. Or you have leaks from old cast iron pipes, what do you do? In the past you would move into a motel for a few days while a plumber destroyed some or all of, you floor and wall as well as dig up your yard and destroy landscaping. All this was done to expose the problem area and replace the pipes. You no long have to do this. Now, due to new technology, you can use trenchless pipe lining. This is a lining that is placed inside existing pipes. It is very strong, in face strong enough to be used in the places where some pipe is missing. It cost much less that the old method and will last for 100 years. It is also resistant to roots because there are no joints.