If you own or manage a business in the UK, you’re likely already aware that fire safety isn’t just a "nice to have": it’s a legal necessity. But here’s something that might not be on your radar yet: the standards for fire detection and alarm systems in non-domestic premises are changing.
From 30 April 2025, the new BS 5839-1:2025 standard officially takes over. While this isn’t a law in itself, it is the benchmark that fire authorities, insurance companies, and fire risk assessors use to decide if your building is actually safe. If you’re looking for a new commercial fire alarm or planning to upgrade an existing one, the goalposts have moved.
At JKE Fire & Security, we believe in making security and life safety simple. You don’t need to be an engineer to understand how to protect your people and your property. Here are the five key things you need to know about the 2025 standards and how they affect your business.
1. Sleeping Risks: Heat Detectors Are No Longer Enough
One of the most significant shifts in the 2025 update concerns buildings where people sleep. Think hotels, care homes, student accommodation, or even offices with on-site staff quarters.
Under the previous version of the standard, heat detectors were often used in bedrooms to avoid "nuisance alarms" from steam or cooking. However, the 2025 update makes it clear: smoke or multi-sensor detectors are now the required standard for sleeping rooms. Heat detectors are no longer considered adequate for life safety in these areas because they simply don’t react fast enough to save lives while someone is asleep.
For business owners, this means if you are installing a new system or modifying an old one in a building with sleeping risks, you must use the right detection technology. At JKE, we recommend multi-sensor detectors. These "smart" devices can distinguish between real smoke and harmless steam, giving you the best of both worlds: rapid detection and fewer false alarms.
2. Faster Monitoring: The 90-Second Rule
If your fire alarm system is monitored: meaning it sends a signal to an Alarm Receiving Centre (ARC): the 2025 standards have introduced much tighter requirements for signalling times.
For "Category L" systems (those designed specifically to protect life), a fire signal must now reach the ARC within 90 seconds. Additionally, if there is a "catastrophic fault" (like the entire system going offline), the ARC must be notified within 3 minutes.
Why does this matter to you? It means your monitoring equipment and communication lines (like the phone lines or mobile links) need to be up to the task. If your current monitoring setup is sluggish, you could find yourself falling short of the new compliance benchmark. When we design a system, we ensure the maintenance and monitoring infrastructure is robust enough to meet these high-speed requirements, giving the emergency services the best possible chance to respond.
3. Mandatory Covers for Call Points
We’ve all seen them: the red "Break Glass" units near exits. In the security industry, we call these Manual Call Points (MCPs). One of the most common causes of false alarms in UK businesses is someone accidentally knocking into an MCP with a ladder, a trolley, or even a heavy handbag.
The BS 5839-1:2025 update addresses this head-on. All new Manual Call Points must now be fitted with transparent protective covers.
These covers don’t stop someone from using the alarm in an emergency; they just require a deliberate action (lifting the cover) before the glass is broken or the button is pressed. It’s a simple, low-cost fix that can save your business thousands of pounds in lost productivity caused by accidental evacuations. If you’re looking at a quote for a new system and it doesn't include these covers, the provider isn't following the latest best practices.
4. Better Documentation and "Zone Plans"
During a fire, every second counts. When the Fire & Rescue Service arrives at your building, the first place they go is your fire alarm control panel. They need to know exactly where the fire is located.
The 2025 standards put a massive emphasis on documentation and zone plans. A zone plan is essentially a "You Are Here" map of your fire alarm zones, displayed right next to the control panel. If your building has multiple floors or complex layouts, this plan is vital.
The update also tightens the rules on:
- Logging all maintenance: You must have a clear record of every test and service.
- Recording "Variations": If your system deviates from the standard for any reason, it must be documented and justified.
- Cable Identification: Mains supply cables to the fire alarm must be red and fire-resistant.
At JKE, we don’t just "fit and forget." We provide comprehensive documentation and clear, professional zone plans as part of our installation process, ensuring you’re always ready for a fire officer’s inspection.
5. Competence is Now Non-Negotiable
Perhaps the most important change in the 2025 standards is the focus on competence. The standard now explicitly requires that anyone designing, installing, or maintaining a fire alarm system must be able to prove they have the right skills, knowledge, and experience.
It’s no longer enough to "have a go" or hire a general electrician who "does a bit of fire stuff." The 2025 update expects contractors to maintain Continuing Professional Development (CPD) records and demonstrate a deep understanding of the life safety systems they handle.
When you partner with JKE Fire & Security, you’re choosing a team that lives and breathes these standards. We don’t compete on being the cheapest; we compete on being the most dependable. We invest in our engineers to ensure they are fully up to speed with the 2025 changes, so you don't have to worry about the technicalities.
Is My Old System Now Illegal?
We get this question a lot. The short answer is: No.
BS 5839-1:2025 is not retrospective. If your current system was installed to the 2017 standards and it’s still working correctly, you don’t have to rip it out on April 30th. However, if you are:
- Installing a brand-new system
- Extending your current system
- Changing the use of your building (e.g., adding sleeping quarters)
- Undergoing a major refurbishment
…then you must comply with the 2025 standards. Even if you aren't doing work, we highly recommend a "gap analysis" during your next service visit to see where your system might be lacking, particularly regarding sleeping risks and call point covers.
Why JKE Fire & Security is Your Right Partner
Fire safety shouldn’t be a headache. It’s about protecting your people and your livelihood. At JKE, we take a solution-led approach. We don’t just want to tick a box for compliance; we want to build a system that is easy to use, incredibly reliable, and supported for the long term.
From design and installation to 24/7 monitoring and responsive aftercare, we handle it all. We speak plain English, avoid the jargon, and focus on what matters: keeping your business safe.
Ready to ensure your premises are up to the 2025 standards? Contact us today for an honest, professional review of your fire safety systems.