After enough annual inspections, you can almost write the punch list before the inspector arrives. Across the facilities we talk to, findings cluster in the same few places every year.
1. Panel batteries
Dead or weak standby batteries are the number-one failed-inspection item we hear about. A battery can read the right voltage sitting idle and still fail the NFPA 72 capacity test. If yours are past about five years, they are a finding waiting to happen — see how often fire alarm batteries need to be replaced.
2. Duct detectors
More airflow than six months ago means it is worth confirming they are clean, sealed, and still alarming on test. The part that gets overlooked is the sampling tube — wrong length, bent, or missing entirely defeats the detector.
3. End-of-line resistors
The cheapest part on the truck, and the one that opens the most loops when it goes missing. Keep 47K, 4.7K, 3.9K, and 10K on hand so you can match whatever the panel specifies — here is how to pick the right end-of-line resistor.
The rest of a typical punch list
Rounding it out: smoke heads past 10 years, broken pull-station glass rods, and dirty detector chambers. All of it is stock-and-swap if you order ahead of the inspection. And if a finding points at an aging panel, remember that an obsolete fire alarm system doesn’t necessarily need complete replacement.
Get ahead of the inspector
If you already know what your inspection is going to flag, browse our fire alarm parts and have it in hand before the inspector shows up.

