We are currently renovating our bathroom ourselves on the 2nd floor. We were going to redo the tiles only, and we found a newspaper from 1947 around the old pipes which means it was installed a long time ago. We started to wonder if the pipes have to be replaced, but it’s not what we planned at the beginning. 

One day we had to call a boiler technician, so we asked him if the bathroom pipe should be reinstalled. He strongly recommend to reinstall the entire bathroom pipes. He assumed the cost might be 10K to replace the entire pipes because it’s the 2nd floor, but he wasn’t a plumber. He told us to get a plumber for an accurate cost. I know it’s a good opportunity to replace them since we already opened the floor and the wall, but 10K is too much money for us. 

As a non-professional, I think the pipes are in a good condition. They seem very sturdy and no leaking at all. I think they can stay 50 more years. I’m thinking about closing the floor without replacing the pipes. Please tell me if I’m an idiot. 

[![bathroom floor with exposed plumbing][1]][1]

  [1]: https://i.sstatic.net/8IBKt.jpg