The answer to 'difference between repiping' is that repiping involves completely replacing all the plumbing pipes in a home, while pipe relining is a trenchless method that repairs existing pipes from the inside. Repiping is a more extensive and costly process, but may be necessary if the pipes are severely corroded, leaking, or inadequate for the home's needs. Pipe relining is a less disruptive and more affordable option when the pipes are still structurally sound, but need repairs to prevent leaks and improve water flow.
Repiping typically requires tearing into walls, floors, and ceilings to access and replace all the plumbing pipes. This can be a major undertaking that requires significant time and expense. Pipe relining, on the other hand, uses a specialized epoxy liner that is inserted into the existing pipes to seal cracks and restore the pipe's integrity from the inside. This trenchless method is less invasive and can often be completed in a single day with minimal disruption to the home.