Fire Alarm and Fire Detection Systems in London
A fire alarm and fire detection system gives the early warning that lets people get out safely, because every second counts in a fire. We design, install and service fire detection systems for homes, HMOs, blocks of flats and businesses across London.
In addition, every system is designed to BS 5839, and all wiring follows BS 7671. As a result, you get a fully certified system that your fire risk assessor and insurer can rely on.
- NAPIT-accredited
- BS 5839 qualified
- Free quotes

What our fire alarm system service includes
We handle every stage of the project. Therefore, you only deal with one team from design to handover.
Fire risk review
First, we review your fire risk assessment, because it decides the grade and category your building needs.
System design
Next, we also plan detector positions, zones and sounders. As a result, the layout matches BS 5839 from the start.
Detectors and sounders
We also install smoke, heat and multi-sensor detectors, together with sounders, beacons and manual call points.
Control panels
For commercial buildings, for example, we also fit conventional or addressable panels, so every zone is easy to identify.
Fire-resistant cabling
In addition, we use fire-resistant cable and fixings, therefore the system keeps working during a fire.
Certificates and logbook
Finally, you also receive design, installation and commissioning certificates, as well as a logbook.
Fire detection systems to BS 5839
We work to BS 5839-1:2025 for commercial buildings and, in addition, BS 5839-6 for homes. Therefore, both standards set the grade of equipment and the category of protection.
For example, a small house may need a Grade D system, while an office may need a Category L or P system. Because we hold current BS 5839 qualifications, your fire alarm system is designed correctly first time.
Design, installation and servicing
Therefore, choose the service you need. Alternatively, we can manage the whole project for you.
Fire alarm design
Because every building differs, we choose the right grade and category and then produce clear layout drawings to BS 5839-1 or BS 5839-6.
Fire alarm installation
In addition, we install mains-powered detectors, panels and sounders in homes, HMOs and commercial buildings.
Commissioning and servicing
After that, we test and commission the system, because it must work first time. We also carry out regular servicing to keep it compliant.
Who needs a fire detection system?
For example, we install a fire alarm system in homes, rentals and commercial buildings. As a result, we often work for landlords, managing agents and business owners.
When do you need a new system?
Also, under the Regulatory Reform (Fire Safety) Order 2005, the "responsible person" must keep fire safety measures in place. For example, you should book a survey when:
- Your fire risk assessment calls for a new system or, alternatively, a better one
- You are converting a property, for example into an HMO or flats
- Your current system is old or faulty and therefore keeps false alarming
- You are refurbishing the building or, alternatively, extending it
- Your insurer or assessor asks for certificates, for instance after a claim
Also, the GOV.UK guide to workplace fire safety and the London Fire Brigade guidance are worth reading.
Our fire alarm system process
Because every building is different, we follow four clear steps.
Survey
First, we visit the building and also review your fire risk assessment.
Design
Next, we design the layout and also send you a fixed written quote.
Install
After that, we install and test every device, while also keeping disruption to a minimum.
Certify
Finally, we commission the system and also hand over your certificates and logbook.
5.0 ratingFrom 85 Google reviews
NAPIT-accreditedMembership No. 65117
BS 5839 qualifiedCertificates for design, installation and, in addition, commissioning
London-wideWe also cover North, North West, West and South West London
Fire detection systems across North and West London
We fit and service fire alarm and fire detection systems all over London, but most of our work is in North, North West and West London. We're regularly in:
Not on the list? Get in touch anyway, because we often travel further for fire alarm work.
More services from our team
In addition, the same team can protect and inspect your property.
Emergency lighting
In addition, we install emergency lighting to BS 5266-1, which often goes hand in hand with a fire alarm.
EICR
We also inspect and test the electrics in homes, rentals and businesses, for example before a sale.
Consumer unit upgrades
Because safety starts at the board, we also replace old fuse boxes with metal RCBO units.
Fire alarm system FAQs
Does my home need a mains-powered fire alarm system?
In most rented homes and HMOs, yes, because BS 5839-6 usually calls for mains-powered, interlinked alarms with battery backup.
Can you upgrade an existing fire alarm system?
Yes, because we first survey the current system. Then, as a result, we recommend the upgrades needed to meet the current standard.
How often should a fire alarm system be serviced?
For example, commercial systems to BS 5839-1 need servicing approximately every six months. In addition, the user should test a call point every week.
Do landlords need a fire alarm system?
Landlords must provide suitable fire detection, because tenants rely on it. However, HMOs and blocks of flats often need a larger system, based on the fire risk assessment.
What is the difference between a grade and a category?
For example, the grade describes the type of equipment. The category, however, describes how much of the building is protected.
What certificates will I receive?
You also receive design, installation and commissioning certificates. As a result, you have the records your insurer or fire risk assessor needs.
Need a fire alarm for your building?
First, tell us about your building. Then, because every quote is free, we will send you a no-obligation price.
Send us an enquiry
Tell us what you need and roughly where you are, and we’ll get back to you with a free quote, usually within 12 hours. Photos of the job always help.
Rather talk it through? Call us on 07447 569653 or send us a message on WhatsApp.
We’re NAPIT-accredited (No. 65117), and every job comes with the right certificate.
