Battery replacement
Panel standby batteries should be load-tested annually and typically replaced at 4 years. Sealed lead-acid cells lose capacity silently; the panel still shows green right up to failure. We carry every common size on the van.

When the panel beeps at 2am or a detector goes silent, you need a name and a number that answers. Same-day reactive cover for contracted sites, and an honest fixed quote for everyone else.
Repair, fault-finding, battery replacement, device replacement, panel reprogramming and planned preventative maintenance for fire alarm systems of any age or manufacturer.
Owners and managers of buildings with a fire alarm fault, a fault-light that won't clear, a system out of warranty, or a system inherited from another contractor.
Whenever the panel shows fault, fire, disablement or pre-alarm; after a power surge or water ingress; when batteries reach end-of-life; or as part of a planned refresh.
An alarm in fault is not protecting anyone. Every hour the system is degraded is an hour of unmanaged risk and unfiled insurance paperwork.
Maintenance is cheap. Replacing a system that has been allowed to corrode for five years is not. Most callouts we attend would have been a £40 battery on a planned visit.
You reach a real engineer, not a call centre. We triage the fault over the phone and tell you what is safe to do in the next 30 minutes.
Same-day for contract clients, 24–48 hours otherwise. Van stocked with batteries, detectors and panels for the systems we cover most.
Loop voltage, current draw, panel event log and device-by-device walk through. We tell you what failed and why.
Minor work completed on the visit at our published hourly rate. Anything larger quoted in writing before we leave.
Maintenance record added to your log and emailed, your servicing chain stays intact.
Install, service and maintenance under one accountable team, no finger-pointing.
Published SLAs, not 'we'll get to you eventually'.
Most contract jobs fixed first visit because the parts are already on board.
Hourly and per-device rates published up front. No after-hours mark-up shocks.
Every visit added to your digital log, useful when an inspector arrives.
We maintain Hochiki, Apollo, Kentec, Advanced, Aico, Honeywell, Menvier and Texecom.
Maintenance is where most fire alarm systems quietly fail. The work below is the bread and butter of what our engineers do across South Wales every week.
Panel standby batteries should be load-tested annually and typically replaced at 4 years. Sealed lead-acid cells lose capacity silently; the panel still shows green right up to failure. We carry every common size on the van.
Optical and multi-sensor detectors have a 10-year service life. Beyond that, sensitivity drift causes both missed detection and false alarms. We document the install date of every head we fit so end-of-life is never a surprise.
We diagnose addressable loops by current draw and event-log analysis, not by 'replace and see'. Conventional zones are traced with a meter and a plan, not by ripping out cable.
When a building's use changes, new partition walls, repurposed rooms, additional flats, the panel's cause-and-effect needs updating so the right zones sound on the right detection. We make those changes in writing.
Refurbishments, leaks and kitchen vapours kill detectors. We replace heads as needed and document the cause so insurance and landlord claims can be evidenced.
When a system is uneconomic to maintain we say so, and quote a like-for-like replacement against a year of repair forecasts so the numbers are clear.
BS 5839 six-monthly fire alarm servicing for HMO landlords, letting agents and commercial premises across South Wales and Bristol. Digital certificates, written quotes.
View serviceFixed-price BS 5839 fire alarm installation across Cardiff, Swansea, Newport, Bristol and the wider South Wales region. Grade A–D, LD1–LD3, licensing-ready certification.
View serviceBS 5266 emergency lighting design, installation, monthly user testing and full annual discharge testing for HMOs and commercial premises across South Wales.
View serviceFree survey, fixed-price quote within 48 hours, and certified work delivered when we said we would.
Covering South Wales