The answer to 'pipe replacement frequency' is that the frequency of pipe replacement can vary significantly depending on the type of pipe, the quality of installation, and the local water conditions. In general, most plumbing experts recommend replacing pipes every 20-50 years, with some types of pipes lasting even longer with proper maintenance.
Factors like water quality, pipe material, and usage patterns can all impact the lifespan of pipes. Copper pipes, for example, may last 50-70 years, while galvanized steel pipes may need replacement after 20-40 years. Regular inspections and addressing any leaks or corrosion issues can help extend the life of your home's plumbing system.