Fire detection and alarm systems are governed by BS 5839-1 (non-domestic premises) and BS 5839-6 (domestic premises), with specialist codes for residential care, hospitals and transport. Selecting the right category for your building drives everything that follows — equipment specification, installation standards, cabling, testing regime, and record-keeping. A Category L5 life-safety system in a small office has very different requirements from a Category P1 property-protection system on a data centre.
Responsible person duties under the Regulatory Reform (Fire Safety) Order include ensuring the system is designed, installed, commissioned and maintained by a competent contractor. BAFE SP203-1 is the leading third-party certification for UK fire alarm firms, covering all four lifecycle stages. Most insurers and many public-sector procurements now expect SP203-1 registration, and the scheme is audited annually by UKAS-accredited bodies.
Common mistakes that our directory listings and their reviews flag regularly: under-specified detectors in kitchens and mechanical plant rooms (frequent false alarms), poor coordination between the fire alarm panel and sprinkler/extract-fan interfaces, and weak commissioning records that leave a building with a certificate but no substantive evidence trail. A good installer demonstrates both technical capability and the documentation discipline to back it up.
Listings on INFIRISK include BAFE and third-party certification status, service coverage area, and — where available — specialisms such as wireless systems, voice alarm (BS 5839-8), or large-site integrated solutions. Filter by postcode to find installers with a presence in your area and by credential to prioritise BAFE-registered or IFE-listed providers.
