Fire Extinguisher Servicing: Legal Requirements & Why It Matters

Annual Fire Extinguisher Service

Fire extinguishers are a critical first line of defence in the event of a fire. However, simply having extinguishers on-site is not enough — they must be regularly inspected, maintained, and serviced to ensure they will operate correctly when needed.

Legal Requirements in the UK

Under the Regulatory Reform (Fire Safety) Order 2005, all non-domestic premises must:

• Provide appropriate fire-fighting equipment

• Ensure equipment is maintained in an efficient state, in efficient working order, and in good repair

• Appoint a responsible person to manage fire safety

This means fire extinguishers must be regularly serviced by a competent person.

Failure to comply can result in:

• Enforcement action from Fire Authorities

• Fines or prosecution

• Increased liability in the event of a fire

  
  

What is a Competent Person?

A competent person is someone who has the training, knowledge, experience, and qualifications to carry out fire extinguisher servicing safely and correctly.

In practice, this typically means a technician who has:

• Completed a recognised training course such as those provided by organisations like Independent Fire Engineering & Distributors Association or British Fire Consortium

• Knowledge of current standards, particularly BS 5306-3:2017

• Practical experience in inspection, maintenance, and servicing

• The ability to identify defects, non-compliance, and safety risks

A competent person will also be able to:

• Assess the fire risks within a premises

• Determine the correct type and number of extinguishers required

• Calculate appropriate travel distances and positioning in line with British Standards

• Ensure extinguishers are correctly located, accessible, and suitable for the specific fire risks present

Many competent persons will also:

• Hold certification or accreditation from a recognised industry body

• Work in line with third-party certification schemes

Using a competent person ensures your extinguishers are legally compliant, correctly positioned, and fit for purpose.

Relevant British Standards

The primary standard governing fire extinguisher servicing is:

BS 5306-3:2017 – Commissioning and Maintenance of Portable Fire Extinguishers

This standard sets out the requirements for:

• Annual servicing by a competent technician

• Monthly visual inspections by the responsible person

• Extended servicing intervals:

  • Water, foam, powder: every 5 years

  • CO₂ extinguishers: every 10 years

It also works alongside BS 5306-8, which covers:

• Selection and positioning of extinguishers

• Travel distances and coverage

• Suitability for specific fire risks

  
  

Recharging of Fire Extinguishers

Fire extinguishers must be recharged immediately after any use, even if only partially discharged.

Recharging involves:

• Refilling the extinguishing agent

• Re-pressurising the unit

• Replacing any used or damaged components

Only a competent service technician should carry out recharging to ensure the extinguisher remains safe and compliant.

An extinguisher that has been used and not recharged is no longer reliable and may fail in an emergency.

Lifespan of Fire Extinguishers

Fire extinguishers do not last forever. Typical lifespan guidance:

• Most extinguishers: 10–20 years (depending on type and condition)

• CO₂ extinguishers: often longer lifespan, subject to testing

• Plastic-headed extinguishers: may have shorter service life

Factors affecting lifespan:

• Environment (corrosion, weather exposure)

• Quality of manufacture

• Regular maintenance and servicing

If an extinguisher shows signs of damage, corrosion, or fails testing, it should be replaced immediately.

What Does a Fire Extinguisher Service Include?

A professional service will typically involve:

• Checking pressure levels

• Inspecting for corrosion or damage

• Verifying safety pins and tamper seals

• Ensuring correct signage and positioning

• Updating service labels and records

This ensures the extinguisher is safe, compliant, and ready for use.

Why Servicing is So Important

1. Reliability in an Emergency

An unserviced extinguisher may fail when needed most — putting lives and property at risk.

2. Legal Compliance

Regular servicing ensures you meet your legal obligations under fire safety law.

3. Insurance Requirements

Many insurers require evidence of proper maintenance. Failure to comply could invalidate claims.

4. Early Fault Detection

Servicing identifies issues such as:

• Pressure loss

• Blockages

• Physical damage

Before they become serious problems.

Your Responsibilities

As the responsible person (e.g. landlord, business owner, or managing agent), you should:

• Arrange annual servicing by a competent provider

• Carry out basic monthly checks

• Keep records of all maintenance

• Ensure extinguishers are accessible and correctly located

  
  

How 20A Limited Can Help

At 20A Limited, we provide:

• Professional fire extinguisher servicing

• Compliance with current British Standards

• Clear reporting and certification

• Reliable, straightforward advice

  
  

Final Thoughts

Fire extinguisher servicing is not just a box-ticking exercise — it is a legal requirement and a vital safety measure. Ensuring your equipment is properly maintained protects your premises, your people, and your legal position.