The answer to 'how long does repiping last' is that a properly installed and maintained repiping project can last 40-50 years or more. Repiping involves completely replacing all the plumbing pipes in a home, usually with more durable materials like copper, PEX, or CPVC. This extensive plumbing work is a significant investment, but it can significantly extend the lifespan of a home's plumbing system and prevent future leaks and water damage.
The actual lifespan of a repiped plumbing system depends on factors like the quality of the materials used, the workmanship of the installation, and how well the homeowner maintains the system through regular inspections and prompt repairs. With proper care, a repiped home can enjoy reliable, leak-free plumbing for decades to come.