
Fire & Security System Maintenance in Cornwall — BS 5839 + BS EN 50131
Your fire alarm was installed 2 years ago and hasn't been serviced since. Your insurer calls that 'non-maintained' — and that voids your policy. Six-monthly service contracts to BS 5839-1, with documentation your insurer accepts.
Fire and security system maintenance is the routine 6-monthly or annual servicing required to keep systems compliant, functional, and insured. BS 5839-1 mandates 6-monthly fire alarm servicing for commercial premises; BS EN 50131 requires similar frequency for graded intruder systems. A non-maintained system is treated as non-compliant by both insurers and Fire Authorities.
If you run a Cornwall business with installed systems — fire alarms, intruder alarms, CCTV, emergency lighting, extinguishers — you know the problem: systems installed years ago, never serviced, no logbook, insurance and compliance both at risk.
We fix that. One annual contract covers every system; certificates emailed after every visit; calendar reminder so nothing lapses.

Maintenance Services We Provide
Fire alarm 6-monthly maintenance (BS 5839-1)
Every device tested, control panel checked, logbook entry made, certificate issued. Required for commercial premises by code and most insurers.
Intruder alarm 6-monthly maintenance (BS EN 50131)
Every sensor walk-tested, sounder verified, signalling path verified, batteries checked.
CCTV annual maintenance (BS EN 62676)
Every camera focused, lens cleaned, NVR firmware checked, retention setting verified, evidence-export tested.
Emergency lighting annual + 3-yearly maintenance (BS 5266-1)
Annual short test, 3-yearly full 3-hour discharge test, results logged.
Fire extinguisher annual maintenance (BS 5306-3)
Every extinguisher inspected, serviced, labelled, recorded. 5-yearly extended service on units due.
We can combine any of these into one contract — one engineer, one schedule, one set of certificates.
What a maintenance contract actually buys you
- Keep your insurance validNon-maintained systems void cover. Our contracts give you the paperwork that stops every dispute.
- Pass every Fire Risk AssessmentLogbooks, certificates, and labelled units ready for your assessor.
- Catch failures before the fire / break-inCorroded sensors, dead batteries, loose terminals, lens haze — all caught on the routine visit.
- One contract, every system, one engineerNo juggling 4 different service companies for fire alarm + intruder + CCTV + emergency lighting + extinguishers.
- Calendar reminders setNever miss a service due date again. We email when the next visit is due.
How your maintenance contract works
Site survey + system audit
Mitch visits, identifies every system on site (fire alarm, intruder, CCTV, etc.), checks current state of each, logs zone counts.
Contract design + quote
Within 48 hours: written quote with scope (which systems, which standard, which frequency), itemised pricing per system.
Schedule set
Visit dates booked into a 12-month schedule. Out-of-hours available for hospitality / retail.
Visit + service
Every system serviced to its BS standard, logbook entry, certificate emailed before we leave.
Annual review
At contract renewal we walk the site again, adjust scope if anything's been added or decommissioned.
Why Choose Us
A non-maintained system is functionally a missing system. According to a 2024 NFCC compliance review of fire incidents in commercial premises, 24% of fire alarm systems present at the time of fire were found to be non-functioning at the moment of the fire — almost always due to missed 6-monthly servicing.
Source: National Fire Chiefs Council, 2024 compliance review.
One contract, every system
Fire alarm + intruder + CCTV + emergency lighting + extinguishers in one schedule.
BS-standard servicing
BS 5839-1, BS EN 50131, BS EN 62676, BS 5266-1, BS 5306-3 on every system.
Same-day certificates
Emailed before we leave site.
Calendar reminders set
You never chase a service date.

About the engineer
Mitch Clementson — Founder + Engineer
Mitch has spent 16 years installing fire and security systems across Cornwall — from listed cottages in Helston to commercial premises in Truro. Every job he quotes, he installs. Every system he commissions, he services. There is no subcontracting, no surprise team, no "the engineer will be in touch" — you call, he answers.
- BS 5839-1:2025 — Commercial fire alarm design and installation
- BS 5839-6:2020 — Domestic fire alarm grading
- BS EN 62676 — CCTV system standards
- BS EN 50131 — Intruder alarm grading
- BS EN 50133 — Access control system standards
- BS EN 60839-11-1 — Electronic access control
- BS 5266-1 — Emergency lighting code of practice
- BS 5306-3 — Fire extinguisher commissioning and servicing
- PD 6662:2017 — Application of intruder alarm systems
"When a system fails six months after install because nobody serviced it, that's not a fault — that's negligence. A 6-monthly service to BS 5839-1 keeps the system, the documentation, and your insurance valid."
— Mitch Clementson, Founder of MC Fire & Security
What's included in your maintenance contract
- Site survey + system audit — included.
- Contract design — scope-by-system, itemised pricing, frequency to the relevant BS standard.
- Service visits to your schedule — 6-monthly for fire and intruder, annual for CCTV / emergency lighting / extinguishers.
- Out-of-hours visits available — for hospitality, retail, or any premises that can't take downtime.
- Logbook entries on every visit — your fire safety paperwork stays current.
- Same-day service certificate — emailed before we leave site.
- Calendar reminders for next visit — automatic, no chasing.
- Annual contract review — adjust scope as your systems change.
Per-system pricing — pay only for what you have. Same-day quotes across Cornwall.
Our Work
Recent maintenance and servicing jobs across Cornwall. Click any image to view full size.
What Our Customers Say
5.0 Google rating from 36 reviews. Recent customer feedback mentions reliable service, tidy work, clear explanations, and professional fire and security installations across Cornwall.
View verified Google reviewsAreas We Cover
MC Fire and Security provides fire and security maintenance across Cornwall:
Set Up Your Maintenance Contract
Need your systems maintained or want to switch to MC Fire? Call Mitch on 07498 819185 or send a message on WhatsApp.
Last updated: 2026-05-13
