Ready Steady Rules

Fire alarm and detection to the FRA's category

A fire detection and alarm system — call points, smoke or heat detectors and sounders — designed and installed to the category (for example L2 or L3) your fire risk assessment says you need, to BS 5839-1.

A fire detection and alarm system — call points, smoke or heat detectors and sounders — designed and installed to the category (for example L2 or L3) your fire risk assessment says you need, to BS 5839-1.

This is the core life-safety system almost every fire risk assessment will require. The category dictates coverage and detector type, and a mismatched or self-installed system is one of the most common reasons a fire risk assessment fails.

WHEN
2-4 weeks to design, install and commission
COST
£800-£4,000+ for a small-to-medium venue
indicative, checked 2026-08
WHO DOES IT
A qualified contractor
F2
LEGAL BASIS
Regulatory Reform (Fire Safety) Order 2005 / Fire (Scotland) Act 2005; BS 5839-1.
Find a fire alarm installer

Ask for BS 5839 design, installation and commissioning certificates matched to the category in your fire risk assessment.

Who this is for

Every venue serving the public — effectively all of them.

What you’ll hold

  • BS 5839 design, installation and commissioning certificates
  • As-fitted system drawing
  • Zone chart

Watch out for

Sources

See also

This is item 25 of 66 in the free UK Launch Checklist. See the whole list →