Emergency Lighting Installation Guide UK¶

Emergency lighting installation and compliance for UK homes, flats and HMOs - types, standards, testing and maintenance.

When Is Emergency Lighting Required in the UK?¶

Emergency lighting is required by the Regulatory Reform (Fire Safety) Order 2005 in common areas of HMOs, blocks of flats, and commercial premises. For domestic properties, it is strongly recommended in escape routes, stairwells, and near final exits. Approved Document B of the Building Regulations mandates emergency lighting in buildings with floor levels above 4.5m and in flats with communal corridors. Standard options include maintained emergency lights (on at all times, runs on battery if power fails) and non-maintained (off normally, illuminates when power fails). Emergency ceiling lights cost £20-£60 from brands like Ansell, Sylvania, and JCC Lighting. Self-contained LED emergency downlights with 3-hour backup start from £25 and are the most common choice for UK flats.

Installation, Testing and Duration Requirements¶

Install emergency lighting at final exits, on stairwells, in corridors longer than 2m, and at changes of direction in escape routes. Mount at ceiling height with unobstructed light distribution. Each light must provide at least 1 lux throughout the escape route for the rated duration - BS 5266-1 specifies 3 hours for occupied premises. Monthly function tests require pressing the test button to simulate mains failure for 30 seconds. Annual full discharge tests check the 3-hour battery duration. A logbook must record all tests. Installation cost for a typical flat common area is £300-£800 depending on the number of units. For HMOs, emergency lighting must be checked by the responsible person monthly and professionally serviced annually. Replace battery packs every 3-4 years.

Specifications and Comparison¶

Light Type	Mode	Duration	Typical Price
Non-maintained downlight	Off normally, on in power cut	3 hours	£25-£45
Maintained bulkhead	Always on, stays on if power fails	3 hours	£30-£60
Emergency exit sign	Illuminated directional sign	3 hours	£20-£50
Weatherproof emergency	External exit routes	3 hours	£40-£80

FAQ¶

Do I need emergency lighting in my house?: Not in a standard owner-occupied house. However, HMOs, blocks of flats, and houses with more than 4.5m floor height do require emergency lighting in escape routes.
How long should emergency lights stay on in the UK?: BS 5266-1 requires a minimum 3-hour duration for most premises to allow for evacuation and emergency services access.
How often should emergency lighting be tested?: Monthly 30-second function test and an annual 3-hour full discharge test. All results must be recorded in a logbook. For more information see our Fire Safety for UK Flats and Apartments.

Last updated: 2026-05-31.

External Resources¶

For further information consult authority guidelines at the Information Commissioner's Office.