How Often Do Fire Extinguishers Need to Be Serviced in NSW?
Short answer
Portable fire extinguishers in applicable NSW buildings are routinely serviced every 6 months under AS 1851-2012.
AS 1851 also specifies yearly and 5-yearly servicing requirements for portable fire extinguishers, with different inspection and maintenance activities applying at each interval.
From 13 February 2026, AS 1851-2012 became mandatory for applicable essential fire safety measures in new and existing Class 1b and Class 2–9 buildings in NSW.
How often do fire extinguishers need to be serviced in NSW?
Portable fire extinguishers covered by AS 1851-2012 have routine service requirements at:
- 6 months
- 12 months
- 5 years
These are not simply repeated versions of the same inspection. Different servicing activities apply at different intervals.
Extinguishers installed in an adverse environment may also require the more comprehensive 5-year servicing routine to be carried out every 3 years.
This can be relevant where extinguishers are exposed to conditions such as vibration, corrosion, chemicals, weather or other environmental factors that can accelerate deterioration.
What is checked during a 6-monthly fire extinguisher service?
A proper extinguisher inspection involves examining the entire unit, not simply checking the pressure gauge and punching the service tag.
Depending on the extinguisher type, checks include:
- location and accessibility
- appropriate signage
- pressure gauge or pressure indicator
- safety pin and tamper seal
- hose, horn and nozzle condition
- blockages inside hoses and nozzles
- corrosion, rust, dents or other physical damage
- condition of the base of the cylinder
- mounting bracket and security
- operating instructions and labels
- service tag and previous servicing information
We remove the extinguisher from its bracket so the complete cylinder can be examined, including the base and areas that cannot be properly inspected while it remains hanging on the wall.
Hoses and nozzles are also checked internally. Insects, spiders and other debris can find their way into extinguisher components.
For ABE dry chemical powder extinguishers, we also invert the unit as part of our inspection process to check that the powder is moving freely inside the cylinder.
What is the difference between 6-monthly, annual and 5-yearly extinguisher servicing?
AS 1851 applies different servicing activities depending on the interval.
The 6-monthly service focuses on the condition, accessibility and operational readiness of the extinguisher.
The yearly service includes additional servicing requirements that go beyond the 6-monthly routine.
The 5-yearly service is significantly more comprehensive and includes requirements such as internal examination, pressure testing and replenishment of the extinguishing agent where applicable.
Rather than carrying out the 5-yearly servicing process, an extinguisher may sometimes be replaced with a new comparable unit.
Where an extinguisher is installed in an adverse environment, the 5-year servicing routine may be required every 3 years instead.
When does a fire extinguisher need to be replaced instead of serviced?
An extinguisher may need to be removed from service and replaced when it no longer meets the applicable inspection and servicing requirements.
Reasons can include:
- significant rust, corrosion or pitting
- dents or physical damage to the cylinder
- damage to valves, handles or other components
- loss of pressure or evidence of leakage
- damage or deterioration caused by an adverse environment
- operating instructions that are no longer legible because of abrasion, paint, weathering or sun exposure
- failure of the applicable pressure test or servicing requirements
An extinguisher that has been discharged, even partially, also requires attention immediately rather than waiting until the next scheduled service.
There is no universal AS 1851 rule requiring every extinguisher to be automatically discarded when it reaches 10 or 12 years of age.
Condition, extinguisher type, servicing history and the applicable servicing requirements determine whether the extinguisher can remain in service or should be replaced.
Who can inspect and service fire extinguishers in NSW?
NSW building owners are responsible for ensuring applicable essential fire safety measures are inspected and maintained by people who are competent to perform the work and who hold any licences or qualifications required for that work.
A nationally recognised qualification relevant to this work is the CPP20521 Certificate II in Fire Protection Inspection and Testing.
The qualification includes units covering routine inspection and testing of portable fire extinguishers and fire blankets, as well as other fire protection equipment.
The important point for a building owner or manager is that extinguisher servicing should be carried out by a person who has the training, knowledge and competency required for the particular servicing activities being performed.
Servicing keeps an extinguisher in working order, but it still needs to be the right type for the hazard it protects. Our guide on what fire extinguisher ratings mean explains how the letters and numbers on an extinguisher indicate what classes of fire it is suitable for.
And if you are unsure what the broader fire safety requirements in NSW actually are, our guide on the requirements for fire inspections in NSW explains what section 81A and AS 1851-2012 require of building owners.