Household plumbing pipes do not have a fixed expiration date, but different materials have predictable lifespans. Modern PVC and PEX plastic supply lines last 50 years or more, copper pipes typically last 50 to 70 years, and older galvanized steel pipes often require replacement after 30 to 50 years due to internal rust corrosion and mineral clogging. Routine visual inspections help catch failing pipes early. Verification: Inspect exposed basement and utility room piping regularly for signs of corrosion, bulging, or greenish-blue buildup.
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