Fire Alarm Servicing & Maintenance
Planned inspection, testing and maintenance with clear reports, organised records and reminders before the next visit is due.
Fire Alarm Systems · London
Fire alarm systems designed, installed and maintained properly
SES surveys, designs, installs, tests and maintains fire alarm systems across London for businesses, landlords, managing agents, HMOs, churches and community buildings. Whether you need a new system, an upgrade, help with repeated faults or a dependable contractor to take over the maintenance, we assess what is already there, explain what the building needs and give you a clear route forward.
Prefer to call? 0207 523 5373
The complete fire alarm lifecycle
One contractor from first survey to ongoing maintenance
A fire alarm is not just a panel and a collection of detectors. The category, coverage, device selection, cause and effect, warning levels, power supplies and ongoing testing all have to suit the building and the people using it. SES can look after the system from the first survey through to ongoing maintenance:
- Fire alarm surveys and system condition reports
- Design and specification of new systems and upgrades
- Conventional, addressable and wireless fire alarm systems
- Installation, commissioning and handover
- Extensions and alterations to existing systems
- Routine inspection, testing and maintenance
- Fault-finding, repairs and false-alarm investigation
- System takeovers where records or previous support are limited
- Logbooks, service records and relevant certification
- Integration with AOVs and other life-safety systems where applicable
Systems can also be connected to 24/7 alarm monitoring, so activations and faults are transmitted to an Alarm Receiving Centre even when the building is empty.
Commercial and non-domestic fire alarm systems
Fire alarm systems in offices, shops, schools, nurseries, churches, warehouses, communal buildings and other non-domestic premises are normally designed and maintained in accordance with BS 5839-1. The correct system category is not something we guess from a photograph or choose simply on price. It should follow the building's fire risk assessment, fire strategy, use, layout and occupancy. We work from the available information, survey the premises and make clear where further design or fire-risk input is required.
HMOs and residential buildings
HMOs and blocks of flats need particular care because the correct arrangement depends on how the building is divided, the escape strategy, the risk within individual dwellings and the requirements for communal areas. Depending on the property, the solution may involve a domestic detection system to BS 5839-6, a Grade A panel-based system, a non-domestic system to BS 5839-1, or a carefully coordinated combination. See our dedicated pages on HMO fire alarms and blocks of flats and managing agents.
Taking over an existing system
It is common to inherit a building with an alarm but little useful information about who installed it, how it was designed or when it was last properly serviced. We can survey the system, inspect the panel and field devices, review the available records, test its basic operation and identify faults, unsupported equipment or obvious gaps — then explain what can remain, what needs attention and whether it can go onto a sensible maintenance schedule. We do not condemn a complete system simply because it is unfamiliar or untidy; equally, we will not sign off something that has not been properly assessed. More on fault-finding, repairs and takeovers.
Wireless, wired and addressable systems
SES installs conventional, addressable and wireless systems. The right choice depends on the building rather than whichever product happens to be easiest to fit. Wireless fire alarms can be particularly useful in occupied properties, churches, listed buildings and completed interiors because they can substantially reduce new cabling, surface containment and disruption. We explain the practical differences, ongoing maintenance requirements and likely cost before recommending one.
Systems we work with
SES has practical experience installing, maintaining, fault-finding and taking over a wide range of wired and wireless fire-alarm systems, including:
- EMS SmartCell and FireCell
- EDA Zerio Plus
- Kentec panels with Apollo detection
- C-TEC systems with Apollo AlarmSense
- Zeta ID2
- Hochiki Ekho
- Advanced Go
- Haes Elan
- Fike Twinflex Pro
- AOV panels and controls, including Velux systems
This describes hands-on experience with these systems, not manufacturer approval or partnership. Got an unfamiliar panel? Send us a photograph and we'll tell you where we stand — see also fault-finding, repairs and takeovers.
Digital fire-alarm records
Where included in your maintenance plan, SES provides a digital fire-alarm logbook with cloud access. Testing, servicing, faults and remedial work can be recorded in one accessible place, helping responsible persons, landlords and managing agents keep a clear history for each building.
Fire alarm services
Explore the full range
Wireless Fire Alarm Systems
Low-disruption radio systems for occupied buildings, churches, listed premises and finished interiors — designed properly for the building.
HMO Fire Alarm Systems
Surveys, Grade A and domestic detection, upgrades and servicing designed around the property, its licence and its fire risk assessment.
Blocks of Flats & Managing Agents
Fire alarm, AOV and emergency-lighting maintenance for residential blocks, freeholders and managing agents — organised under one contractor.
Schools & Nurseries
Installation, servicing and fault-finding scheduled around safeguarding, teaching, sleep times and building access.
Fire Alarm Repairs & Takeovers
Fault-finding, repairs and maintenance takeovers for faulty panels, false alarms, missing records and unsupported systems.
AOV Testing & Maintenance
Testing and maintenance of automatic opening vent systems, including controls, detectors, actuators and fire alarm interfaces.
24/7 Fire Alarm Monitoring
CSL DualCom Pro single and dual-path signalling connected to the EMCS Alarm Receiving Centre, with keyholder setup and monthly monitoring.
How the process works
From first contact to a system that stays in the diary
- Tell us about the building — the address, property type, approximate size and what you already know about the system. Upload the fire risk assessment, previous certificate or panel photographs if you have them.
- Site survey — we inspect the premises, existing equipment and available records. For a new system, we establish the design basis and identify any information still required.
- Clear proposal — a written scope explaining the proposed system, relevant category or grade, equipment, exclusions, certification and price.
- Installation, repair or takeover — scheduled to minimise disruption, particularly in occupied buildings and public premises.
- Testing, handover and maintenance — we test the completed work, provide the relevant records and can arrange future servicing so the system does not disappear from the diary.
Frequently asked questions
Fire alarm systems, answered
How do I know which fire alarm category my building needs?
The category should normally come from the fire risk assessment, fire strategy, licence conditions or system design — not from the installer choosing the easiest option. If the requirement is unclear, we will explain what information is missing before quoting a final design.
Can SES maintain a system installed by another company?
Usually, yes. We first need to inspect the system, establish what equipment is installed and review its condition and records. If parts, software or engineering access are restricted, we will tell you before taking responsibility for it.
Do you install wireless fire alarms?
Yes. SES specialises in low-disruption wireless solutions where they are suitable for the building. We also install and maintain wired, conventional and addressable systems.
Will I receive a certificate?
We provide the appropriate documentation for the work completed, which may include design, installation, commissioning, modification or servicing records. The exact documents depend on the scope of work.
Do you carry out fire risk assessments?
Our role is fire alarm and electrical work. We work from the building's fire risk assessment and can identify when it needs to be reviewed by a competent fire-risk assessor.
Need a clear answer on your fire alarm?
New installation, repeated faults, missing records or a maintenance contract that is no longer working — tell us what you have and we will arrange the right next step.
Request a Quote
Prefer to call? 0207 523 5373