"How much does a fire alarm cost?" is one of the most common questions we hear, and the honest answer is that it depends on the building. Two buildings with the same floor area can have very different prices. Here is what drives the cost, so you can understand a quote and compare like with like.
The main cost drivers
- The category. An L1 system with detection in every room needs far more devices than an L4 system that covers escape routes only.
- The number of devices. Detectors, call points, sounders and visual alarms are each a cost in parts and labour.
- Conventional, addressable or wireless. Conventional systems are cheaper for small buildings. Addressable systems cost more per device but make large buildings easier to manage. Wireless devices cost more but save labour and disruption.
- Cabling routes. Open ceiling voids are quick to cable. Solid ceilings, listed interiors and occupied flats take much longer.
- Cable type. Some buildings need enhanced fire-resisting cable, which costs more than standard.
- Interfaces. Door holders, lifts, smoke vents, plant shutdown and sprinkler monitoring all need extra design, devices and testing.
- Access. High ceilings, atriums and warehouses may need powered access equipment.
- Working hours. Out-of-hours or phased work in occupied buildings adds time.
- Remote monitoring. Connection to an alarm receiving centre has its own installation and annual cost.
Comparing quotes
When comparing quotes, check that each one:
- states the system category and the standard it is designed to
- includes a device schedule or drawing
- includes commissioning, certification, zone plan and logbook
- states what is excluded, such as making good, builders' work or out-of-hours working
- states the warranty and the cost of the first year's maintenance.
The cheapest quote is often cheaper because it designs to a lower category or leaves things out. A quote that is clear about what it includes is usually the safer choice.
Ongoing costs
Budget for six-monthly servicing, periodic replacement of batteries, and replacement of detectors at the end of their life. A well-maintained system is far cheaper over its life than one that is neglected and then needs replacing.
This guide is general information about UK fire safety law and standards, not legal advice for a specific building. If you are unsure what applies to yours, ask us or a qualified adviser.