A high-quality residential sink faucet typically lasts between 15 to 20 years of normal daily use before internal mechanical parts wear out beyond repair or finish corrosion becomes excessive. While inexpensive builder-grade faucets may begin leaking or loosening within 5 to 10 years, premium brass-bodied fixtures often last for decades with occasional O-ring and cartridge replacements. Verification: Inspect faucet operational smoothness and finish condition during annual home maintenance.
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