If you own an older home that has existing galvanized pipes for your plumbing, there will come a time to consider an entire house re-pipe. Galvanized pipes, in time, will eventually close up, meaning that the water the home gets from the city has sediment in it and will more than likely build up on the inside of some, if not, all of your plumbing. This is evident if you have changing water flow at your faucets and are constantly removing the aerator at the end of the faucet to remove a build up of debris.