Fire extinguishers are the most visible piece of fire safety equipment in any commercial building, and they are also one of the most commonly mis-managed. The wrong type, the wrong number, the wrong location, or — most often — a service schedule that has quietly drifted out of compliance. UK fire extinguisher servicing is governed by the British Standard BS 5306, and the specifics matter: an extinguisher serviced by a non-competent person, or serviced to the wrong intervals, may not work when it’s needed, and the Responsible Person can be held liable. This article sets out exactly what BS 5306 requires, who can carry the work out, and how often each level of service is due. If you’d rather hand the schedule over to a qualified contractor, our fire safety and protection services include fire extinguisher servicing carried out by an experienced Fire Extinguisher Technician trained to the BS 5306 examination.
The Regulatory Reform (Fire Safety) Order 2005 imposes a general duty under Article 13 to ensure that premises are equipped with appropriate firefighting equipment, and under Article 17 to maintain that equipment in efficient working order. The FSO does not, however, prescribe how that maintenance should be carried out — it leaves that to the technical standards.
For portable fire extinguishers, those standards are:
These standards are not legally mandatory in the same way the FSO is, but they are the recognised benchmark of compliance. A Responsible Person who can demonstrate that their extinguishers are commissioned, positioned and serviced in line with BS 5306 is, in practice, discharging their duties under the FSO. A Responsible Person who cannot is exposed.
For more on what those duties actually involve, see Who Is the “Responsible Person” Under UK Fire Safety Law?.
BS 5306-3 sets out four distinct types of activity:
Each of these has a specific scope and a specific competence requirement. They are not interchangeable, and a Responsible Person needs to understand which is due when.
BS 5306-3:2017 is explicit that maintenance must be carried out by a competent person, defined as someone with sufficient training, experience, knowledge and other qualities to discharge the function safely.
The recognised UK benchmark for competence in this area is the BAFE SP101 scheme, run by BAFE (British Approvals for Fire Excellence), the independent fire safety registration body. The SP101 scheme:
While the FSO does not legally require BAFE SP101 registration, in practice it is what insurers, enforcing authorities and competent fire risk assessors expect. If your contractor isn’t BAFE registered, you should be able to articulate why.
This matters for the Responsible Person specifically because — as we cover in more depth in Who Is the “Responsible Person” Under UK Fire Safety Law? — the duty to maintain stays with you, even when you’ve engaged a third party. Engaging a competent, accredited contractor is part of how you demonstrate you’ve discharged it.
In addition to the annual basic service, BS 5306-3 recommends a monthly visual check by the Responsible Person or their nominated representative. This is not a substitute for the annual service — it is in addition to it.
The monthly check confirms:
The monthly check should be recorded in a logbook. It takes a few minutes per unit and provides early warning of issues that would otherwise only surface at the annual service.
Servicing is only one half of compliance. The other half is having the right extinguishers in the right places to begin with — which is governed by BS 5306-8:2023.
BS 5306-8 sets out requirements for:
A common mistake on legacy installations is to leave extinguisher coverage exactly as it was originally specified, even after the use of the building has changed. A site that has been converted from offices to a kitchen, or has had EV charging installed, or has added a battery storage facility, will almost certainly need a different extinguisher mix than it had ten years ago. The fire risk assessment process is the trigger for reviewing this — see Fire Risk Assessments: Legal Requirements, Frequency and What’s Included.
Pulling all of this together, the operational schedule for a typical commercial premises looks like this:
Monthly: Visual user check by the Responsible Person or nominated representative. Recorded in the fire safety logbook.
Annually: Basic service by a competent person trained to BS 5306-3 (typically a fire extinguisher technician who has passed the BS 5306 examination), on every extinguisher, within ±1 month of the previous service date.
Every five years: Extended service on water, foam, dry powder and wet chemical extinguishers.
Every ten years: Hydrostatic pressure test on CO₂ extinguishers (extended service equivalent).
End of service life (typically 20 years): Decision on overhaul versus replacement.
After any use, partial discharge, or tampering: Immediate recharge by a competent person before the unit is returned to service.
The Responsible Person should keep a written record of every service, every monthly check, every recharge, and every replacement. In the event of a fire, an inspection or a prosecution, those records are how you demonstrate compliance.
Veritech Security works with employers, building owners, managing agents, and principal contractors across the UK to deliver the fire extinguisher commissioning, servicing and replacement programmes required under the Fire Safety Order and BS 5306. Our services relevant to fire extinguisher compliance include the supply and commissioning of new extinguishers in line with BS 5306-8:2023; annual basic servicing carried out to BS 5306-3:2017 by an experienced Fire Extinguisher Technician trained to the BS 5306 examination; five-yearly extended servicing with full discharge, internal inspection and recharge; CO₂ ten-year hydrostatic testing; on-the-spot recharge after use, drill or tampering; and integrated fire risk assessment, fire warden training and ongoing fire safety support so that your extinguisher cover stays aligned with the actual use of your building.
We are members of the Fire Protection Association and the Fire Industry Association, and we hold SIA Approved Contractor status (ACS Pacesetters), ISO 9001, ISO 14001, Constructionline Platinum, SafeContractor, CHAS, RISQS, Achilles and Cyber Essentials accreditations — the credentials that insurers and enforcing authorities expect to see.
If you need a qualified partner for your fire extinguisher servicing, speak to Veritech.
Call: 0800 799 9800 (available 24/7) Email: info@veritech-security.com Or request a fire extinguisher servicing consultation online.
Related Articles
Head Office
18-20 Millbrook Road East,
Southampton, Hampshire, SO15 1HY
Tel: 0800 799 9800
Email: info@veritech-security.com
Hours: Monday - Sunday: Open 24 Hours
© 2026 Veritech Security is a trading name of Veritech Systems Limited | Company Registration No. 07095234 | Social Responsibility Policy | Sitemap | Privacy Policy | Policies and Procedures | Veritech Systems Limited holds SIA approved contractor status for Security Guarding, CCTV and Keyholding security services.
Simply complete our quick survey below
