30/05/2025
UK Fire Alarm Regulation in the Workplace 2025: Everything You Need to Know
Overview of Fire Alarm Regulations in 2025
The update to BS 5839-1:2025 marks one of the most significant changes to UK fire safety standards in recent years. This updated British Standard brings fire alarm system requirements in commercial buildings closer to modern risks, technology, and European best practices.
While the Regulatory Reform (Fire Safety) Order 2005 remains the overarching legal framework, BS 5839-1:2025 provides detailed guidance for designing, installing, commissioning, and maintaining fire detection and alarm systems in non-domestic premises. The 2025 update introduces stricter requirements, greater clarity on system categories, and revised risk assessment guidance, making it essential for employers and property managers to review fire safety provisions.
Want to speak with us about your compliance with fire alarms? Call us on 0800 043 6728.
Who Is Affected by the New BS 5839-1:2025 Standard?
The updated standard has implications for nearly all non-domestic premises in the UK. Employers and business owners must ensure that installed fire alarm systems fully comply with BS 5839-1:2025 in design, performance, and maintenance. Landlords and commercial property managers are responsible for upgrading systems to meet the latest standards, particularly in multi-occupancy buildings. The standard also emphasises enhanced fire detection for environments like care homes, where occupants may need assistance evacuating. Schools and universities are now expected to adhere to more robust fire detection requirements, with clearer expectations on alarm audibility, coverage, and system zoning.
Have questions about your building’s compliance? Speak to a Sygma specialist on 0800 043 6728.
Legal Responsibilities Under BS 5839-1:2025
While the Fire Safety Order 2005 defines legal duties, BS 5839-1:2025 provides a technical roadmap for compliance.
Employers, duty holders, and landlords are now expected to:
- Reassess existing fire alarm systems to confirm they meet the new BS 5839-1:2025 technical benchmarks.
- Update fire risk assessments to reflect changes in system categories, design principles, and notification methods.
- Ensure system upgrades or new installations follow the revised standard, which now includes more detailed specifications on system performance and component selection.
Failure to follow the updated guidance could result in legal action, even if a fire doesn’t occur.
Fire Alarm System Requirements Under BS 5839-1:2025
The 2025 standard introduces clearer guidance on system categories (L1–L5, M, and P systems) and how to choose the right type for each building based on its risk level and occupancy type.
Important updates include more straightforward guidelines on system design for high-risk environments. These changes mandate coverage in care home bedrooms and establish stricter audibility requirements in noisy areas. There is also a focus on using addressable systems for large or complex buildings, allowing quicker location identification in case of a fire. Additionally, there is a requirement for the use of certified components that have been tested to meet specific standards, enhancing the system’s overall reliability.
All fire alarm systems must now be designed, installed, and maintained strictly in accordance with BS 5839-1:2025. Even small premises with manual systems must demonstrate compliance with these updated design and testing requirements.
Fire Risk Assessment & BS 5839-1:2025 Compliance
Your fire risk assessment should now take into consideration the revised risk criteria introduced in BS 5839-1:2025.
This new standard requires:
- Greater integration between fire risk assessment and system specification ensures that alarm type and coverage are directly informed by the specific fire risks present.
- More detailed documentation around system design choices and justifications, especially when deviating from standard recommendations.
- Routine re-evaluation of the fire alarm system’s effectiveness following any building changes, occupancy updates, or incidents.
Need help updating your Fire Risk Assessment? Learn more about our fire risk assessments.
Installation & Maintenance Standards in BS 5839-1:2025
BS 5839-1:2025 considers the requirements around who installs and maintains fire alarm systems, placing greater emphasis on accountability, documentation, and ongoing performance. The standard requires that all installations be carried out by competent individuals, with clear and traceable documentation, including design certificates and commissioning records. This ensures systems are installed to the correct specifications from the outset.
Weekly testing of fire alarm systems remains a core requirement, but BS 5839-1:2025 now includes more detailed guidance. In particular, it emphasises the importance of rotating manual call point testing to verify the functionality of each device over time. Accurate record-keeping of these tests is critical for demonstrating compliance and identifying any emerging faults.
Professional servicing must take place at least every six months. The updated standard outlines clearer procedures for checking individual components, identifying system faults, and documenting any repairs or upgrades. These inspections must be carried out by qualified technicians who understand the new standard’s requirements.
All maintenance activities must be logged in a compliant fire alarm logbook. This record is a vital compliance document and may be inspected during audits or by fire safety authorities.
Penalties for Non-Compliance with BS 5839-1:2025
Ignoring the latest BS 5839-1:2025 guidance could now lead your business to serious consequences, including:
- Fines up to £5,000 for minor non-compliance
- Unlimited fines or imprisonment for serious breaches or negligence
- Enforcement notices or business closure in extreme cases
- Increased insurance premiums or loss of cover for failing to meet recognised safety standards
Staying compliant with BS 5839-1:2025 protects your premises legally and ensures the safety of everyone who uses them. Call a member of our team on 0800 043 6728 to ensure your business is Fire Compliant.
How Sygma Helps You Stay BS 5839-1:2025 Compliant
At Sygma, we’re here to take the stress out of compliance. Whether you need to upgrade an existing system, install a fully compliant solution, or update your fire risk assessment, our team of experts will guide you through the process in accordance with BS 5839-1:2025. We also provide tailored fire alarm installations, regular servicing and testing, professional fire risk assessments, staff training, and emergency planning support.
Get in touch today and ensure your workplace meets the latest fire safety standards with confidence.
FAQ’s
Do I legally need to upgrade my fire alarm system in 2025?
If your current system doesn’t meet the requirements of BS 5839-1:2025, yes. Risk assessments must reflect and act upon the updated standard.
How often should fire alarms be tested?
Test your fire alarm weekly, and ensure professional servicing every six months per BS 5839-1:2025.
What’s the difference between conventional and addressable alarms under the new standard?
Addressable systems are now strongly recommended for larger or high-risk premises due to their ability to identify exact trigger locations.