A house repipe is the process of replacing or repairing the plumbing pipes within a home to improve water flow, prevent leaks, and ensure the plumbing system's reliability and safety. This typically involves removing outdated, corroded, or damaged pipes—such as those made of galvanized steel or outdated copper—and installing new pipes made of modern materials like PEX. Replacing the plumbing system can address issues like low water pressure, frequent leaks, or pipe failures, and it often requires a professional plumber to assess the home's plumbing layout and perform the replacement efficiently and safely.