The answer to 'how does repiping work' is that repiping is the process of replacing all or part of a home's existing plumbing system. This typically involves removing the old pipes and installing new ones throughout the house. Repiping is often necessary when the old pipes have become corroded, leaky, or otherwise damaged over time.
The repiping process usually starts with an assessment by a professional plumber to determine the extent of the issues with the existing pipes and the best approach for replacement. They will then shut off the main water supply, drain the pipes, and begin removing the old pipes. New pipes are then installed, often using materials like copper, PEX, or CPVC that are more durable and resistant to common plumbing problems. Once the new pipes are in place, the plumber will restore the water supply, test the new system, and ensure everything is working properly.