Emergency lighting testing is the process of inspecting and verifying that emergency light fittings in a building will illuminate correctly during a power failure, ensuring safe evacuation routes for occupants. Under BS 5266-1, emergency lighting systems in the UK must undergo monthly functional tests and an annual full-duration test (typically 3 hours) to confirm compliance.
If you’re responsible for a commercial building, residential block, or Build to Rent development, then emergency lighting testing is one of the most important compliance tasks on your list. In this article, we break down exactly what’s involved, what the law requires, and how Manchester Compliance delivers testing programmes across Greater Manchester.
What Is Emergency Lighting?
Emergency lighting refers to battery-backed light fittings that activate automatically when the normal mains power supply fails. These fittings are specifically designed to illuminate escape routes, exit signs, and high-risk areas so that building occupants can evacuate safely in the event of a power cut or emergency.
In the UK, emergency lighting is required in virtually all commercial, industrial, and multi-occupancy residential buildings. This includes offices, warehouses, factories, shops, restaurants, apartment blocks, care homes, schools, and public buildings. Essentially, if people work in, visit, or live in a building with shared escape routes, that building almost certainly needs a functioning emergency lighting system.
Emergency light fittings contain internal batteries that charge continuously from the mains supply. When the mains fails, the battery takes over and powers the lamp for a rated duration — usually 3 hours. This gives occupants enough time to leave the building safely, even in total darkness.
Why Is Emergency Lighting Testing Required?
Emergency lighting testing is a legal requirement, not an optional extra. The Regulatory Reform (Fire Safety) Order 2005 places a duty on the “responsible person” ‚Äî typically the building owner, landlord, employer, or managing agent ‚Äî to ensure that all fire safety systems, including emergency lighting, are properly maintained and tested.
Additionally, BS 5266-1 is the British Standard that sets out the specific requirements for the installation, wiring, servicing, and testing of emergency lighting systems. This standard clearly defines the monthly and annual testing schedules that must be followed.
There are several important reasons why regular testing matters:
- Legal compliance — failure to maintain emergency lighting can result in enforcement action, improvement notices, or prosecution by the fire authority
- Insurance requirements — most commercial insurance policies require evidence of regular emergency lighting testing. Without it, a claim could be rejected
- Battery degradation ‚Äî emergency lighting batteries lose capacity over time. Without annual full-duration testing, you won’t know whether a fitting can actually sustain illumination for the required 3 hours
- Occupant safety ‚Äî ultimately, emergency lighting exists to save lives. If it doesn’t work when it’s needed, people could be left navigating escape routes in total darkness
As we covered in our article on commercial electrical compliance, emergency lighting testing is one of the core elements of any compliance programme alongside EICRs, PAT testing, and fire alarm testing.
What Are the Different Types of Emergency Lighting?
Not all emergency light fittings work in the same way. Understanding the different types helps when planning a testing programme, because each type behaves differently during a test.
By Operation Mode
- Non-maintained — the most common type. These fittings only switch on when the mains supply fails. During normal operation, the lamp is off and the battery is charging. This is the type found in most commercial buildings and residential blocks.
- Maintained — these fittings are always illuminated, whether or not the mains is on. When the mains fails, the battery takes over seamlessly. Maintained fittings are commonly used for exit signs and in cinemas, theatres, and other venues where lighting levels may be low during normal use.
- Sustained — these are dual-function fittings with two lamps. One lamp operates on the mains supply for normal lighting, and a separate lamp activates on battery power during a mains failure.
By Function
- Escape route lighting — illuminates defined escape routes to allow safe movement towards exits
- Open area lighting ‚Äî provides general illumination in large open spaces (over 60m²) to reduce the risk of panic and help occupants orientate themselves towards escape routes
- High-risk task area lighting — provides illumination in areas where a sudden loss of light would create an immediate danger, such as near moving machinery or chemical processes
- Standby lighting — enables normal activities to continue during a mains failure, though this is distinct from emergency escape lighting
Monthly Emergency Lighting Tests
Under BS 5266-1, every emergency lighting system must receive a brief functional test each month. Here’s what the monthly test involves:
- Simulate a mains failure — either by using a dedicated test switch or by isolating the mains supply to the emergency lighting circuit
- Check each fitting illuminates — every emergency light in the building must activate and produce visible illumination
- Inspect for visible damage — cracked diffusers, discoloured lamps, or signs of overheating are all flagged
- Record results in the log book — every test must be documented with the date, the person carrying out the test, and the results for each fitting
- Flag failures for repair — any fitting that fails to illuminate, flickers, or appears dim is recorded and scheduled for repair or replacement
The monthly test is deliberately brief — usually only a few seconds per fitting — so that the batteries are not significantly discharged. This means the building remains protected immediately after the test. However, even a short test can reveal failed lamps, dead batteries, or wiring faults that would otherwise go unnoticed.
For businesses that don’t have the time or resource to carry out monthly tests internally, Manchester Compliance offers monthly testing programmes where our engineers visit site each month, carry out all tests, and maintain the log book on your behalf.
Annual Full-Duration Tests
The annual test is the most important test in the emergency lighting calendar. Once a year, every emergency light fitting must run for its full rated duration — typically 3 hours — to prove that the battery can sustain illumination for the entire period.
Here’s what the annual full-duration test involves:
- Full discharge of batteries — the mains supply is disconnected and every emergency light runs on battery power for the full 3-hour period
- Monitoring throughout — our engineers monitor the fittings during the test to identify any that fail or dim before the 3-hour mark
- Careful scheduling — because the test fully discharges the batteries, the building is temporarily left without emergency lighting backup while the batteries recharge (typically 24 hours). We schedule annual tests carefully to minimise risk, and we advise clients on interim safety measures during the recharge period
- Full certificate issued — after completing the annual test, we issue a comprehensive emergency lighting certificate confirming compliance with BS 5266-1
- Remedial recommendations — any fittings that fail the 3-hour test are recorded, and we provide a clear schedule of recommended replacements or repairs
The annual test is where battery degradation really shows up. A fitting might pass a monthly short-duration test perfectly, yet fail after 90 minutes during the annual test because the battery can no longer hold a full charge. This is precisely why the annual full-duration test exists ‚Äî it’s the only way to truly verify that your emergency lighting system will perform when it matters most.
What Areas Must Emergency Lighting Cover?
BS 5266-1 specifies exactly which areas of a building must have emergency lighting coverage. During both monthly and annual tests, our engineers verify that all of the following areas are adequately covered:
- Escape routes and corridors — every designated escape route must be illuminated to a minimum of 1 lux along the centre line
- Stairwells — all staircases forming part of an escape route, with a minimum of 1 lux on each tread
- Final exits — the area immediately inside and outside each final exit door
- Open areas over 60m² ‚Äî large open-plan spaces require open area emergency lighting to a minimum of 0.5 lux
- High-risk task areas — any area where a loss of light would create an immediate danger, illuminated to a minimum of 10% of the normal lighting level (or 15 lux, whichever is greater)
- Lift cars — every lift car must have emergency lighting
- Toilet facilities over 8m² ‚Äî larger toilet and washroom areas need emergency lighting coverage
- Changes of direction and intersections — anywhere the escape route changes direction or intersects with another route
- Near fire alarm call points and firefighting equipment — so that these can be located in an emergency
If any of these areas lack adequate coverage, we flag it in our report and advise on the additional fittings needed to bring the system into compliance.
How Much Does Emergency Lighting Testing Cost?
Emergency lighting testing from Manchester Compliance starts from £100 + VAT, depending on the number of fittings and the size of the building.
Several factors influence the final cost:
- Number of fittings — a small office with 10 emergency lights will cost significantly less than a large warehouse or apartment block with 100+ fittings
- Building type and access — multi-storey buildings, buildings with restricted access areas, or premises requiring out-of-hours attendance may attract additional costs
- Testing frequency — clients who sign up for a combined monthly and annual testing programme benefit from better rates than one-off visits
- Bundled services — we offer competitive rates when emergency lighting testing is combined with EICR testing, PAT testing, or fire alarm testing as part of a full compliance package
We always provide a clear, fixed-price quote before any work begins. There are no hidden charges, and we itemise everything so you know exactly what you’re paying for.
Emergency Lighting Testing from Manchester Compliance
At Manchester Compliance, we deliver emergency lighting testing and certification for commercial premises, Build to Rent developments, residential apartment blocks, and industrial units across Greater Manchester and the North West.
Here’s what sets our service apart:
- NICEIC Approved Contractor — our engineers are fully qualified and work to the highest industry standards
- Monthly and annual programmes — we manage the entire testing schedule on your behalf, so you never miss a test
- Full documentation — log books, certificates, and remedial reports are all provided digitally for easy record-keeping
- Flexible scheduling — we work evenings, weekends, and around your operational hours to minimise disruption
- Bundled compliance packages — combine emergency lighting testing with EICRs, fire alarm testing, and PAT testing for the best value
- Fast remedial works — if fittings fail during testing, we can supply and install replacements quickly to get your system back into compliance
Whether you need a one-off annual test or a fully managed monthly and annual programme, we’ll tailor the service to your building and your budget.
NICEIC Approved Contractor
Emergency Lighting Testing & Certification
Monthly & Annual Testing Programmes
BS 5266-1 Compliant
Serving Greater Manchester & the North West
Commercial, residential & BTR specialists
We serve Manchester, Salford, Stockport, Trafford, Bolton, Bury, Oldham, Rochdale, Tameside, Wigan, and surrounding areas.
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Published March 2026 by Manchester Compliance Ltd — NICEIC Approved Contractor serving Greater Manchester and the North West.