A repipe specialist is a trained and experienced professional tasked with the full or partial replacement of an existing plumbing supply system. This can include any combination of pipes, fixtures, and valves that bring fresh water into a residence or business. Repiping is often necessary due to corrosion, deterioration due to age, failure resulting from a major plumbing issue such as broken pipes or flooding, outdated materials incompatible with modern standards and regulations, poor workmanship in previous installs of piping systems, or simply wanting to upgrade aging fixtures and supplies for greater efficiency (hot water heaters) or style.