--- title: "Fire Alarm Installation South Wales | BS 5839 Certified | AS Fire Services Ltd" description: "Fixed-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." lang: en json-ld: | [ { "@context": "https://schema.org", "@type": "Organization", "@id": "https://asfire.co.uk/#organization", "name": "AS Fire Services Ltd", "alternateName": "AS Fire", "url": "https://asfire.co.uk", "logo": "https://asfire.co.uk/favicon.png", "image": "https://asfire.co.uk/favicon.png", "telephone": "+447360538643", "email": "asmith@asfire.co.uk", "contactPoint": [ { "@type": "ContactPoint", "telephone": "+447360538643", "contactType": "customer service", "areaServed": "GB", "availableLanguage": "en" }, { "@type": "ContactPoint", "telephone": "+441443572076", "contactType": "customer service", "areaServed": "GB", "availableLanguage": "en" } ], "address": { "@type": "PostalAddress", "streetAddress": "Unit 37, Bowen Industrial Estate, Pengam", "addressLocality": "Aberbargoed, Bargoed", "postalCode": "CF81 9EP", "addressCountry": "GB" }, "areaServed": [ "Cardiff", "Newport", "Swansea", "Bristol", "Pontypridd", "Merthyr Tydfil", "Bridgend", "Gloucester", "Cwmbran" ], "sameAs": [ "https://www.linkedin.com/company/as-fire-services-ltd/", "https://www.instagram.com/as_fire_services/", "https://www.facebook.com/ASFireServices" ] }, { "@context": "https://schema.org", "@type": "WebSite", "@id": "https://asfire.co.uk/#website", "name": "AS Fire Services Ltd", "url": "https://asfire.co.uk", "publisher": { "@id": "https://asfire.co.uk/#organization" }, "inLanguage": "en-GB" }, { "@context": "https://schema.org", "@type": "BreadcrumbList", "itemListElement": [ { "@type": "ListItem", "position": 1, "name": "Services", "item": "https://asfire.co.uk/services" }, { "@type": "ListItem", "position": 2, "name": "Fire Alarm Installation", "item": "https://asfire.co.uk/services/fire-alarm-installation" } ] }, { "@context": "https://schema.org", "@type": "Service", "serviceType": "Fire Alarm Installation", "name": "Fire Alarm Installation", "description": "Fixed-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.", "areaServed": "South Wales & the West", "provider": { "@type": "LocalBusiness", "name": "AS Fire Services Ltd", "telephone": "+447360538643", "email": "asmith@asfire.co.uk", "address": { "@type": "PostalAddress", "streetAddress": "Unit 37, Bowen Industrial Estate, Pengam", "addressLocality": "Aberbargoed, Bargoed", "postalCode": "CF81 9EP", "addressCountry": "GB" } } }, { "@context": "https://schema.org", "@type": "FAQPage", "mainEntity": [ { "@type": "Question", "name": "How much does a fire alarm installation cost in South Wales?", "acceptedAnswer": { "@type": "Answer", "text": "Every installation is quoted individually after a free site survey. We don't publish a standard rate card — pricing depends on building size, grade, category and cable runs. Once we quote, the price is held for that scope of work." } }, { "@type": "Question", "name": "How long does installation take?", "acceptedAnswer": { "@type": "Answer", "text": "Most HMO systems are fitted and commissioned in 1–3 working days. Larger commercial sites are typically completed in under a fortnight with no disruption to trading hours." } }, { "@type": "Question", "name": "Will my system pass local authority inspection?", "acceptedAnswer": { "@type": "Answer", "text": "Yes, we design to BS 5839 and issue the four certificates (design, install, commission, acceptance) and as-fitted drawings that Cardiff, Newport, Swansea and surrounding councils require." } }, { "@type": "Question", "name": "Do you guarantee the work?", "acceptedAnswer": { "@type": "Answer", "text": "12-month workmanship guarantee on every install, on top of manufacturer warranties of 3–10 years on devices and panels." } }, { "@type": "Question", "name": "Can you install while the property is tenanted?", "acceptedAnswer": { "@type": "Answer", "text": "Yes. We schedule first-fix and second-fix around tenants, give 48 hours notice for room access and leave the site clean each evening." } }, { "@type": "Question", "name": "What happens if the fire risk assessment changes after installation?", "acceptedAnswer": { "@type": "Answer", "text": "We update the system free of charge within 6 months of handover if a re-assessment changes the required category, provided the building use has not materially changed." } }, { "@type": "Question", "name": "Do you provide a maintenance contract afterwards?", "acceptedAnswer": { "@type": "Answer", "text": "Yes. Optional six-monthly servicing contracts start the day after handover. There is no obligation, and prices are published per device, no auto-renewal traps." } }, { "@type": "Question", "name": "Can you take over a system installed by someone else?", "acceptedAnswer": { "@type": "Answer", "text": "Yes. We carry out a takeover inspection, list any compliance gaps in writing, and quote to remediate before adopting it onto a service contract." } } ] } ] --- [asmith@asfire.co.uk](mailto:asmith@asfire.co.uk)South Wales Open 24/7 [07360 538643](tel:07360538643)[01443 572076](tel:01443572076) [![AS Fire Services Ltd](/assets/logo-f-VmegNh.png)](/) Services Service Areas [About](/about-us)[Our Work](/our-work)[Reviews](/reviews)[Resources](/resources)[Specials](/specials)[Contact](/contact-us) [Request Estimate](/contact-us) 1. [Home ](/) 2. Fire Alarm Installation ![Smoke detector base with fire alarm wiring installed by AS Fire Services engineer](/assets/img-09-CNT2xX4f.jpeg) [South Wales & the West](/) # BS 5839 Fire Alarm Installation for HMOs & Commercial Properties A designed, certificated fire alarm system fitted to an agreed programme, with the quoted scope confirmed in writing before we lift a tool. Every install handed over with the BS 5839 paperwork your local authority, insurer and letting agent will actually accept. [Request an Estimate](/contact-us) [07360 538643](tel:07360538643) Trusted by landlords, developers & letting agents across South Wales & the West. 15+ Years on the tools BS 5839 Certified to standard 24–48h Typical callout window 100% Insured & DBS-checked Service overview ## Fire Alarm Installation, explained without the jargon ### What it is A new fire detection and alarm system designed to BS 5839-1 (commercial) or BS 5839-6 (domestic/HMO), specified to the correct grade and category for your building, then installed, commissioned and certificated by qualified engineers. ### Who it's for HMO landlords preparing for a licensing inspection, developers handing over new or refurbished units, letting agents managing portfolios, and commercial occupiers who need a system that will pass a fire risk assessment first time. ### When it's needed Before a licensing application, after a fire risk assessment flags shortfalls, during a refurbishment, when an ageing panel keeps faulting, or whenever insurers or local authority enforcement officers require an upgrade. ### Why professional matters An incorrectly graded or poorly sited system is worse than no system at all, it fails inspection, voids cover and creates personal liability for the Responsible Person under the Regulatory Reform (Fire Safety) Order 2005. The cost of ignoring it ## The hidden cost of getting an installation wrong ### Risks if left unchecked - ● Licence refusal or revocation, properties marketed without a valid HMO licence carry fines up to £30,000 per offence. - ● Insurance claims declined where the installed grade does not match the fire risk assessment. - ● Personal prosecution of the Responsible Person under articles 8–22 of the RRFSO. - ● Tenants displaced at short notice while remedial work is carried out, lost rent and reputational damage. ### Common mistakes - ● Buying a domestic kit off a DIY shelf and fitting it in a licensable HMO. - ● Mixing manufacturers on the same loop, breaking BS 5839 compatibility rules. - ● Skipping the design stage, sounder coverage, zoning and cause-and-effect must be documented, not guessed. - ● Accepting a verbal handover with no certificate, log book or as-fitted drawings. Every month an under-specified system stays in place is another month of unquantified liability. A single sleeping-risk incident in a non-compliant HMO can end a portfolio. Our process ## A clear path from enquiry to certificate 1. Step 1 ### Site Survey Free attended survey to measure the property, review escape routes and confirm the grade and category required by BS 5839 and your fire risk assessment. 2. Step 2 ### Design & Written Quote Written specification, device schedule and as-proposed drawings, sent over with a clear itemised quote, no day rates, no surprise extras. 3. Step 3 ### Installation First-fix and second-fix carried out by qualified engineers, with cabling concealed wherever possible and minimal disruption to occupied units. 4. Step 4 ### Commissioning & Testing Full cause-and-effect test, decibel readings in sleeping areas, panel programming and zone labelling, all witnessed and recorded. 5. Step 5 ### Certification & Handover BS 5839 design, installation, commissioning and acceptance certificates issued digitally, plus a site log book and user training for your nominated person. Why clients stay with us ## Specific, measurable benefits ### Speed Most HMO and small commercial systems installed in 1–3 days from order, with a hard deadline written into the quote. ### Safety Properly graded detection in the right places, sleeping-risk coverage that gives occupants the time they actually need to escape. ### Compliance Documentation pack accepted by Welsh and English local authorities, insurers and letting agents on first submission. ### Cost certainty Agreed scope and agreed handover date, quoted in writing. No T&M creep. ### Longevity Specified for at least a 10-year design life, with parts availability and a clear servicing path. ### Peace of mind One accountable contractor responsible for design, install, certification and ongoing service. Technical detail ## Everything that goes into a proper fire alarm installation Fire alarm installation is not a single product, it is an engineered system whose design must match the building, its occupancy and the risk profile identified in the fire risk assessment. The sections below explain how we specify systems across the property types we work with most often. ### Grades explained: A, B, C, D, E, F Grade A is a fully BS 5839-1 system with control panel, mains-powered detection and standby battery, required for most licensable HMOs and all commercial premises. Grade D systems use mains-powered, interlinked detectors with battery back-up and suit smaller shared houses. We never specify lower grades where a higher grade is mandated, even when a cheaper option is asked for. ### Categories: LD1, LD2, LD3, L1–L5 Categories define where detection is placed. LD1 covers all rooms including bedrooms; LD2 covers escape routes plus high-risk rooms; LD3 protects only escape routes. Commercial L1–L5 categories follow the same logic. The right category is dictated by your fire risk assessment, not by budget. ### HMO vs. commercial installs HMO systems prioritise sleeping-risk coverage and inter-flat compartmentation, with sounder levels of 75 dB at the bed-head. Commercial installs add manual call points at every exit, zoning by floor or fire compartment, and often interface relays for door-holders, lift recall and AOV (automatic opening vents). ### Wired, wireless and hybrid systems We fit wired loops as standard for new build and refurbishment, hybrid radio for occupied period properties where chasing cable is impractical, and full wireless EN 54-25 systems for listed buildings. Each has trade-offs in cost, service life and battery replacement schedule that we walk you through at survey. ### Integration with emergency lighting and door entry Where appropriate we tie the fire alarm into emergency lighting test routines, magnetic door retainers and Paxton or similar access control so that all life-safety systems behave correctly on activation. ### Materials and manufacturers we standardise on Hochiki, Apollo, Kentec and Aico for panels and devices, chosen for 10-year-plus parts availability and serviceability. We do not fit cloned panels or grey-import devices that cannot be serviced in five years' time. Frequently asked ## Frequently asked questions How much does a fire alarm installation cost in South Wales? Every installation is quoted individually after a free site survey. We don't publish a standard rate card — pricing depends on building size, grade, category and cable runs. Once we quote, the price is held for that scope of work. How long does installation take? Will my system pass local authority inspection? Do you guarantee the work? Can you install while the property is tenanted? What happens if the fire risk assessment changes after installation? Do you provide a maintenance contract afterwards? Can you take over a system installed by someone else? Related services ## Often paired with fire alarm installation [ ### Fire Alarm Servicing 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 service ](/services/fire-alarm-servicing)[ ### HMO Fire Alarms Grade A LD2 and LD1 HMO fire alarm systems designed, installed and certified for licensing across Cardiff, Newport, Swansea and South Wales. View service ](/services/hmo-fire-alarms)[ ### Fire Risk Assessments Type 1–4 fire risk assessments for HMOs, blocks of flats and commercial premises across South Wales. Aligned to the Regulatory Reform (Fire Safety) Order 2005 and PAS 79. View service ](/services/fire-risk-assessments) Browse by area: [cardiff](/service-areas/cardiff)[newport](/service-areas/newport)[swansea](/service-areas/swansea)[bristol](/service-areas/bristol)[pontypridd](/service-areas/pontypridd) ## Ready to make fire alarm installation one less thing to worry about? Site survey, written quote the same day, and certified work delivered when we said we would. [Request an Estimate](/contact-us) [07360 538643](tel:07360538643) Covering South Wales & the West ![AS Fire Services Ltd](/assets/logo-f-VmegNh.png) BS 5839 compliant fire alarm installation, servicing and certification across South Wales and the West. Trusted by HMO landlords, developers and letting agents. - Unit 37, Bowen Industrial Estate, Pengam, Aberbargoed, Bargoed CF81 9EP - [07360 538643](tel:07360538643) - [01443 572076](tel:01443572076) - [asmith@asfire.co.uk](mailto:asmith@asfire.co.uk) - 24 hours, Monday – Sunday [](https://www.linkedin.com/company/as-fire-services-ltd/)[](https://www.instagram.com/as_fire_services/)[](https://www.facebook.com/ASFireServices) ## Services - [Fire Alarm Installation](/services/fire-alarm-installation) - [Fire Alarm Servicing](/services/fire-alarm-servicing) - [Fire Alarm Maintenance](/services/fire-alarm-maintenance) - [HMO Fire Alarms](/services/hmo-fire-alarms) - [Emergency Lighting](/services/emergency-lighting) - [PAT Testing](/services/pat-testing) - [EICR](/services/eicr) - [Fire Risk Assessments](/services/fire-risk-assessments) - [Fire Extinguishers](/services/fire-extinguishers) - [All fire safety services →](/services) ## Service Areas - [Fire alarm engineers in Cardiff](/service-areas/cardiff) - [Fire alarm engineers in Swansea](/service-areas/swansea) - [Fire alarm engineers in Newport](/service-areas/newport) - [Fire alarm engineers in Bristol](/service-areas/bristol) - [Fire alarm engineers in Pontypridd](/service-areas/pontypridd) - [Fire alarm engineers in Merthyr](/service-areas/merthyr) - [Fire alarm engineers in Bridgend](/service-areas/bridgend) - [Fire alarm engineers in Gloucester](/service-areas/gloucester) - [Fire alarm engineers in Cwmbran](/service-areas/cwmbran) - [All service areas →](/service-areas) ## Company - [About AS Fire Services](/about-us) - [Our Work](/our-work) - [Customer Reviews](/reviews) - [Accreditations & Standards](/accreditations) - [Fire Safety Resources](/resources) - [Fire Safety FAQs](/faq) - [Free HMO Compliance Audit](/specials) - [Contact Us](/contact-us) - [Privacy Policy](/privacy-policy) - [Cookie Policy](/cookie-policy) - [Terms & Conditions](/terms-conditions) © 2026 AS Fire Services Ltd. 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