Updated 2026-11-10
When Sprinkler Heads Must Be Replaced: Age, Damage & Recalls
Sprinkler heads do not last forever. NFPA 25 sets age-based testing and replacement rules, plus conditions that require immediate replacement.
1.Standard-response sprinklers at 50 years
Sprinklers in service for 50 years must be replaced or a representative sample tested by a recognized lab, then retested at set intervals.
2.Fast-response sprinklers at 20 years
Fast-response sprinklers must be replaced or sample-tested at 20 years and then at regular intervals.
3.Dry sprinklers on a shorter cycle
Dry sprinklers have a shorter replacement or testing interval under current editions of NFPA 25.
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4.Harsh environments
Sprinklers exposed to corrosive or extreme environments are tested or replaced more frequently.
5.Damaged, painted, or leaking heads
Any sprinkler that is damaged, painted, corroded, loaded, or leaking must be replaced regardless of age.
6.Recalled sprinklers
Some sprinkler models have been recalled. If your building has recalled models, plan replacement with your contractor.
Check the manufacture year on your sprinklers and plan replacements before they become a deficiency.
General information only. Requirements depend on your building, occupancy, adopted code edition, and local Authority Having Jurisdiction (AHJ). Confirm specifics with your AHJ or a licensed fire protection contractor.