The answer to 'repiping or repiping' is that repiping and repiping are two different plumbing processes with distinct purposes. Repiping involves completely replacing the existing plumbing system in a home, while repiping focuses on selectively replacing or repairing specific sections of the plumbing.
Repiping is typically a more extensive and costly project, as it requires the removal of all old pipes and the installation of a brand-new plumbing system throughout the home. This is often done when the existing pipes are severely corroded, leaking, or unable to meet the home's current or future water demands. Repiping can improve water pressure, flow, and overall plumbing efficiency, but it is a major undertaking that can disrupt a household for several days or weeks.