BS 5839-1 fire alarm in a Grade-II Listed pub near Bruton

Generic case study. We do not name the pub, the licensee, or the brewery — the value is the cabling discipline, the device positioning, and the cause-and-effect that keeps a busy listed venue both compliant and trading.

The brief

A Grade-II Listed coaching-inn-style pub near Bruton, with a public bar, two dining rooms, a snug, a working beer cellar and 4 letting rooms over 2 upper floors. The existing system was a 1990s 2-zone conventional panel with patchy detection coverage, no sounders in the upper accommodation rooms, and a stack of repeat false alarms from kitchen steam ingress. The licensee's insurer and the local Fire and Rescue Service had both flagged the system as inadequate. The brief: replace the lot with a properly designed BS 5839-1 Category L2 addressable system, do it without scarring any original beam, panel or wattle, and have it handed over for the FRS audit at the end.

What we did

• Survey + design to BS 5839-1. Building footprint mapped. Category L2 specified (life protection in defined high-risk areas + sleeping accommodation), with full coverage in the kitchen, cellar and circulation routes.
• Listed-building consent supported. Routes agreed with the conservation officer that did not penetrate any original beams or original panelling. All cable runs through service voids, behind existing skirting and inside existing duct work.
• Addressable analogue panel installed in the staff corridor with a remote indicator at the main entrance for FRS attendance.
• Detection mix matched to risk: heat-only detector in the kitchen (no nuisance from steam), combined optical/heat in the cellar (humidity), optical smoke in dining areas, accommodation corridors and bedrooms.
• Sounders and beacons positioned for ≥ 75 dBA at the bedhead in every letting room (BS 5839-1 requirement). Visual beacons added in the disabled WC and the kitchen pass.
• FP200 fire-resistant cable throughout (red sheathed), no PVC T+E in the protected loops.
• Manual call points at every final exit, plus the cellar hatch.
• BS 5266 emergency-lighting cross-check. Existing 3-hour escape-route luminaires tested, gaps filled, central battery tested under load. Both systems demonstrated together.
• Certificates issued: BS 5839-1 design certificate, BS 5839-1 installation certificate, BS 5839-1 commissioning certificate, BS 5266 certificate of completion. All four lodged in the premises fire log book.
• FRS-ready handover with the licensee and kitchen manager: how to silence, how to investigate, how to log a manual test.
• VAT-itemised invoice with VAT @ 20%.

The system

The result

The pub passed the FRS audit at first attempt with the new pack. The kitchen detector swap eliminated the steam-related false alarms that had been costing the licensee call-out fees and bad reviews. Every letting room now has audible coverage at the bedhead, the cellar is properly protected and the system status is visible at the entrance for FRS attendance. The licensee now operates inside their insurer's policy without exception, and the pub keeps trading uninterrupted.

Who it's for

Listed-building pubs, hotels, B&Bs, boutique inns and small restaurants where the existing fire alarm system is conventional, undersized for current BS 5839-1 expectations, or generating false alarms from poor detector selection. The pattern travels: design first, conservation officer liaison up front, sensible detector choice by zone, FP200 in heritage routes, full handover pack so the FRS audit is straightforward.

Also see: commercial electrical, country pub fit-out case study, heritage installations.