Question: how much does it cost to replace plumbing with pex?
Answer: PEX meets building code nearly everywhere, comes with a 25-year warranty, and puts a smaller hit on your budget than copper. Replacing all of the plumbing in a 1,500 square foot, two-bathroom home with copper piping costs between $8,000 and $10,000. But using PEX would cost just $4,000 to $6,000, according to Gove.