All guides
Every guide on Fire Alarm Answers in one place — covering standards, legislation, costs, and technology. All free to read, no registration required.
Standards & responsibilities
Rough costs
Technology & usage
About this site
Understanding the rules
The legislation, British Standards, and legal duties that govern fire alarms in the UK — explained clearly, without the jargon that makes most official guidance so hard to use.
| Guide | What it covers | |
|---|---|---|
| Understanding BS 5839 | The British Standard that governs fire alarm design, installation, and maintenance — system categories, grades, and what compliance means in practice.BS 5839-1 · BS 5839-6 · L1–L2 · M · P1–P2 · Grade D | › |
| Fire alarm legal requirements | What the RRO 2005 requires, who the Responsible Person is, and the penalties for non-compliance — unlimited fines and custodial sentences.RRO 2005 · Responsible Person · enforcement · prosecution | › |
| How often should a fire alarm be serviced? | Weekly tests, six-monthly services, annual inspections — the full required maintenance schedule under BS 5839-1 and what each visit must cover.Servicing schedule · weekly testing · Clause 45 · BAFE | › |
| Who is responsible for fire alarm testing? | Who carries the legal duty — covering tenants, landlords, managing agents, employers, and the limits of delegation.Responsible Person · delegation · Article 32 · personal liability | › |
| Grenfell Tower and UK fire safety reform | The fire that changed UK building safety regulation — what happened, what the inquiry found, and the legislative changes that followed.Grenfell · Building Safety Act 2022 · Fire Safety Act 2021 · cladding | › |
Rough costs
Understanding what you should pay
Broad price indications for fire alarm installation and maintenance — so you can budget realistically and know when a quote looks too high or suspiciously low.
| Guide | What it covers | |
|---|---|---|
| Fire alarm installation costs UK (2026) | Rough price ranges for commercial and domestic fire alarm installation, with a breakdown of what drives the difference between quotes.Installation costs · conventional · addressable · HMO · new build | › |
| Fire alarm maintenance contract costs | What a service contract should cost, the difference between Basic, Standard, and Full Cover contracts, and how to negotiate a better deal.Maintenance contract · service visit · contract levels · BAFE | › |
Technology & usage
Understanding the equipment
Plain-English explanations of fire alarm technology — written from 30 years of hands-on experience with the equipment.
| Guide | What it covers | |
|---|---|---|
| Detection devices explained | Every detector type in UK fire alarm systems — optical, ionisation, heat, multi-sensor, CO, beam, aspirating, flame, and linear heat detectors.Optical · heat detector · multi-sensor · VESDA · beam detector | › |
| Alarm devices — sounders, bells, and beacons | Motorised bells, sounders, combined sounder beacons, and visual alarm devices — audibility requirements and Equality Act obligations.Sounder · VAD · beacon · BS EN 54-23 · audibility · 65 dB(A) | › |
| Control panels explained | Conventional, twin-wire, addressable, and suppression control panels — how each works and how to choose the right type for your building.Conventional · twin-wire · addressable · cause-and-effect · suppression panel | › |
| Cable and wiring explained | MICC (Pyro) and softskin fire-resistant cable — what each one is, where it must be used, and why cable choice matters in a fire.MICC · Pyro · FP200 · PH 120 · fire-resistant cable · containment | › |
| Wireless fire alarm systems explained | How wireless systems work, when they make sense, reliability considerations, and a cost comparison with wired alternatives.Wireless · 868 MHz · mesh network · battery · listed buildings | › |
| Suppression systems — an overview | Gaseous suppression and water mist systems — how they work, agent types, fire alarm integration, and maintenance considerations.Inert gas · FM-200 · Novec · CO2 · water mist · pre-discharge | › |
| Signal transmission and ARCs | What an ARC is, BS 8521 transmission grades, monitoring costs, and the PSTN switch-off — what it means for existing monitored systems.ARC · BS 8521 · Grade 2 · IP transmission · PSTN switch-off | › |
| False alarm management | Why unwanted alarms happen, the consequences — including Fire Service charging — and the technical measures available to reduce them.Unwanted alarms · coincidence detection · two-stage · ARC verification | › |
| Hazardous areas — ATEX and intrinsically safe devices | Fire alarm equipment in explosive atmospheres — zone classification, ATEX certification, intrinsic safety, and the CompEx competency framework.ATEX · UKEX · Zone 1 · intrinsic safety · Ex i · CompEx | › |
About this site
Other pages
| Page | What it covers | |
|---|---|---|
| Contact | Get in touch with a fire engineer directly — for professional services or any question not covered in the guides.Fire risk assessment · design spec · compliance review · enquiry | › |
| Disclaimer | The nature and limitations of the information on this site — including the indicative nature of cost figures.Indicative costs · professional advice · limitations | › |
| Privacy policy | How Fire Alarm Answers collects, uses, and protects personal data submitted through this website — in plain English.UK GDPR · data controller · cookies · your rights | › |
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