2026-07-24 · HawkSwift Ltd

How Often Should Fire Extinguishers Be Serviced Under BS 5306?

Fire extinguishers are a fundamental part of your building's passive and active fire protection measures. Under the Regulatory Reform (Fire Safety) Order 2005 (RRO), the responsible person must ensure that firefighting equipment is provided and maintained in an efficient state, in efficient working order, and in good repair. But what does "maintained" actually mean in practice, and how often must it happen?

The relevant standard for fire extinguisher maintenance in the UK is BS 5306-8, which provides the code of practice for the selection, installation, and maintenance of portable fire extinguishers. Following this standard helps demonstrate compliance and overhauls.

For most portable extinguishers, an extended service is required five years after the date of manufacture or five years after the last extended service. This involves discharging the extinguisher, thoroughly examining its internal components, and recharging it.

For CO2 extinguishers, the requirements differ. Because CO2 cylinders are subject to pressure system regulations, they require a visual inspection and a test discharge at intervals specified by the manufacturer, typically every five years, and a hydraulic pressure test or replacement every ten years.

An overhaul is a more in-depth procedure that involves replacing parts and is typically carried out in accordance with the manufacturer's instructions. The specific intervals for overhauls can vary depending on the type of extinguisher and the environment in which it is installed.

Connecting BS 5306 to Your fire risk assessment

Fire equipment maintenance does not exist in a vacuum. PAS 79, the publicly available specification for fire risk assessments, highlights that the responsible person must ensure an effective system of maintenance is in place for all fire safety measures, including portable firefighting equipment.

During a fire risk assessment, the assessor will review your maintenance records to verify that extinguishers are being serviced in accordance with BS 5306. If your maintenance records are incomplete or your extinguishers are out of date, this will be flagged as a deficiency in your fire risk assessment report. Under the RRO, failing to maintain firefighting equipment can lead to enforcement action by the local fire and rescue authority.

Record-Keeping and compliance

The RRO requires the responsible person to record the arrangements for the effective planning, organisation, control, monitoring, and review of the preventive and protective measures. This includes maintenance of fire equipment.

When a technician services your extinguishers, they will attach a service label to the body of the unit. This label is your primary record of maintenance. However, relying solely on labels attached to extinguishers is not sufficient. You should maintain a central asset register or logbook that details:

The location and type of every extinguisher.
The dates of monthly visual checks.
The dates of annual basic services and extended services.
The name of the company and technician who performed the service.
Any defects identified and the remedial action taken.

How HawkSwift Can Help

Navigating the requirements of the RRO, HSWA, and BS standards can be complex. At HawkSwift Ltd, our NEBOSH-qualified assessors can help you identify gaps in your fire safety provisions and ensure your maintenance schedules align with your legal duties. We provide comprehensive fire risk assessments from £199 + VAT, with detailed reports delivered within 48 hours. To ensure your maintenance records and extinguisher provision meet the required standards, book a fire risk assessment with our team today.

*This article is provided as general guidance and is not formal legal advice.*

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