10/15/2026
Professional Servicing (Annually Recommended)
While you can do monthly checks, a qualified professional should service your fire extinguishers annually. This involves:
Internal Inspection: The extinguisher will be opened to check the internal components, lining, and extinguishing agent.
Recharging: If the extinguisher has been discharged or is found to be low on pressure, it will be recharged with the correct agent and pressurized.
Hydrostatic Testing: Every few years (typically 5 or 12 years, depending on the type), the cylinder itself will undergo a hydrostatic test. This is a pressure test to ensure the cylinder can withstand its rated operating pressure safely. If it fails, it must be retired.