A back view of electrician installing fire alarm system.
A back view of electrician installing fire alarm system.

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4.0

Great rating - 4/5 (13330+ reviews)

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  • Fire alarm installation
  • Fire alarm wiring
  • Fire system service
  • Fire alarm repair
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Best rated Fire Alarm Installation experts near me

Recent Fire Alarm Installation reviews in London

got job done, quick

Put up Roller Blinds (Drill) and change fire alarm batteries

£60

Completed the job on the same day as posting, thank you!

Change battery in fire alarm

£60

Very quick to arrange a time, updated me when they were nearby too. Brought and ladder and tools with them. Fixed the immediate issue and suggested long-term fixes that could be done in the future. Would definitely recommend Mo.

Change fire alarm

£50

Excellent work! Would definitely recommend Marco!

Door shaved down + fire alarm / lock / curtain installed

£100

Very patient and lovely guy, thanks Hakan!

Change my fire alarm batteries

£50

Great service - very helpful and got the job done super quickly.

Disconnect my fire alarm

£25

Average reviews for Fire Alarm Installation Services in London

based on 29 reviews

4.9

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Recent Fire Alarm Installation tasks in London

Wire up fire alarms

£150

Isle Of Dogs, Greater London

13th Mar 2026

Need an electrician to finish mounting and wiring a few smoke alarms

Commercial Fire alarm installation

£123

Chingford, Greater London

11th Mar 2026

Fire alarm fit within a commercial office building. Ideally I would require a C-TEC system 4 zone All cables have been run Prysmian FP200 19 smoke detectors 12 sounder bases 4 call points Certification required by installer Access is unrestricted Please provide an exact quote and availability Thanks

Diagnostics and fix for fire alarm (smoke detector)

£120

South Kensington, Greater London, SW7

9th Mar 2026

Fire alarm gets activated when no fire

Fix my fire alarm

£50

South Kensington, Greater London, SW7

8th Mar 2026

We changed smoke detector that was showing red and causing a false alarm but the problem remains. Need help from an experienced fire alarm expect to resolve this

Smoke/fire alarm and door self closer

£175

Canary Wharf, Greater London

17th Feb 2026

I got my flat inspected and following points needs to be addressed (please bring the self closer and alarms with you & include these in your pricing estimate) 1- Kitchen – will require a smoke/fire alarm, and the fire door needs a self-closer and the fire strips around the door (example pictures below) (Similarly, you can install a ‘perko’ style self-closer which will need a new hinge in the middle) 2- Utilities room will require a carbon monoxide alarm. Best regards

Domestic fire alarm fitting and lamp cable fixing

£100

Bethnal Green, Greater London, E2

14th Feb 2026

Hi there I’m looking for an electrician to help with two discrete jobs: 1. I need a new fire alarm fitting to an existing base unit on the hallway ceiling (pictured). I can order the fire alarm itself. 2. I also need the cable on a lamp to be reattached to the switch (pictured). Thanks and look forward to hearing from you. Kishore

Hmo fire alarm electric installation 9 rooms

£150

Summerstown, Greater London

12th Feb 2026

Fix and test fire alarm and do certification .

Fire alarm certificate

£60

Stepney, Greater London, E1

8th Jan 2026

fire alarm certificate for two bed flat

Fire alarm battery change

£20

Turnpike Lane, Greater London

4th Jan 2026

Our alarm needs changing batteries but we've no step ladder and it's in a very awkward position on the upstairs landing above the stairs and the ceiling is high. Not entirely sure what batteries needed as first time we've changed it. Would be great to get it sorted and have correct batteries refitted safely, or if it just needs a reset - for that to be done. Quick help would be great as we've had a neighbour mention it.

Fire alarm battery replaced

£30

Upper Norwood, Greater London, SE19

2nd Jan 2026

Replace battery of fire alarm

Fit a fallen radiator, fit humidifier, fit fire alarm

£10

Lamorbey, Greater London

30th Dec 2025

To fit a Radiator previously fitted to the wall, To solve damp problem in a room and to fit fire alarm in the room

Fire alarm battery changed. Please bring appropriate battery

£50

Knightsbridge, Greater London

21st Dec 2025

I need the battery of my smoke alarm changed. I have a 3-step step stool that you can use. Ceiling is about 9 feet high. I'm too short to reach the alarm, so I'm not able to check what battery is required. If you can bring some batteries that would be really helpful

Amazing and friendly service

Install an Interlink fire alarms

£100

Bermondsey, Greater London, SE1

4th Dec 2025

Someone to install a fire alarm interlinked

Circuit breaker for fire alarm

£40

Childs Hill, Greater London

2nd Dec 2025

circuit breaker battery for fire alarm

Fire alarm test service

£150

Romford, Greater London, RM1

26th Nov 2025

I have a fire alarm system that I need testing /checking is all working fine and all error lights resolved. Picture will be added

Replace batteries in a wired-in fire alarm

£30

Ratcliff, Greater London

18th Nov 2025

My fire alarm keeps beeping every 20 seconds. It started doing this months ago, but I usually could hold the main button down for 15 seconds and the beeping would stop. Now, it doesn't work and beeping goes on regardless. The alarm is wired in and seems to be connected centrally to the flat building, and I have tried so many ways of opening it to change the backup battery but it looks like you need tools to do it. There's no indication of model at all so I can't find a manual for it online. Dont know if battery is low or whole alarm system has expired

Smoke alarm give out fire alarms even after battery change

£50

Blackheath Park, Greater London

17th Nov 2025

One smoke alarm in my flat made the fire alarm noise. I tried changing the old battery with new ones but the fire alarm noise wouldn’t stop. I had to temporarily disassemble the smoke alarm. Need the smoke alarm repaired. Or have it replaced if it’s not fixable.

Install wired fire alarm in kitchen

£75

Belgravia, Greater London

16th Nov 2025

Fit wired smoke alarm in or near kitchen

Fix broken socket and fuse. Mount frame and fire alarm on masonry wall

£50

Brownswood Park, Greater London, N4

6th Nov 2025

A double socket and fuse surface pattress boxes has been broken and need to be replaced. Drilling into a masonry wall to hang a heavy frame. Mount a fire alarm on ceiling

Fire alarm system/smoke detectors

£100

Harringay, Greater London

27th Oct 2025

Fire alarm system and smoke detectors