Fire Alarm Installation London | Homes & Businesses

Fire Alarm Installation - Find Electrician

Fire Alarm Installation in London for Homes and Businesses

A fire alarm only protects people if it is installed correctly. Poorly positioned detectors, the wrong cable type or unsupported wiring can stop a system working when it is needed most.

We provide professional fire alarm installation for both domestic and commercial properties across London, from interlinked smoke alarms in family homes to addressable systems in offices, shops and warehouses. Every installation follows BS 5839 and the wiring regulations, BS 7671.

About the service

Our engineers install complete fire alarm systems, whether we designed the system ourselves or you already have a design from a consultant. We work tidily, protect your property and keep disruption to a minimum, and we can work outside opening hours for businesses.

Our fire alarm installation service includes:

Mains-powered smoke, heat and multi-sensor detectors
Conventional and addressable fire alarm control panels
Sounders, beacons and manual call points
Fire-resistant cabling, correctly supported and fixed
Interlinking of detectors (wired or radio)
Replacement of old, faulty or obsolete systems

Domestic Fire Alarm Installation (BS 5839-6)

For houses, flats and HMOs, we install systems in line with BS 5839-6. Depending on the property, this may be a Grade D1 or D2 system of mains-powered, interlinked alarms with battery backup, or a Grade A system with a control panel, which larger HMOs often need.

We install domestic fire alarm systems in:

Houses and flats
HMOs and shared houses
Landlord and rental properties
Loft conversions and extensions
New builds and full rewires

Commercial Fire Alarm Installation (BS 5839-1)

For non-domestic premises, we install systems in line with BS 5839-1:2025, the current code of practice for fire detection and fire alarm systems in non-domestic buildings. We fit everything from small conventional panels in shops to addressable systems covering several floors.

We install commercial fire alarm systems in:

Offices and workspaces
Shops and retail units
Restaurants, cafés and drive-throughs
Warehouses and industrial units
Communal areas of blocks of flats

To see what changed in the latest edition, read the IET’s summary of the key changes to BS 5839-1:2025.

When Do You Need a Fire Alarm Installed or Upgraded?

Your fire risk assessment recommends a new or upgraded system
Your existing system is old, faulty or causing false alarms
You are converting a property into flats or an HMO
You are renovating, extending or rewiring
A commercial unit is being fitted out or changing use
Your insurer or local authority has asked for improvements

If you are responsible for a business or the shared areas of a building, the GOV.UK guidance on fire safety in the workplace and the London Fire Brigade’s guidance explain your legal duties.

Why Choose Us

Engineers qualified in BS 5839-1 and BS 5839-6
Installations to BS 5839 and BS 7671
Fire alarm installation for homes and businesses
Neat, tidy work with minimal disruption
Full testing and certification on completion
NAPIT-accredited (Membership No. 65117)

Areas We Cover

We provide fire alarm installation across North London, North West London, West London and South West London, including N, NW, W and SW postcode areas. If your area is not listed below, please contact us to confirm availability.

North London: N1 – (Islington, Hoxton), N2 – (East Finchley), N3 – (Finchley Central), N4 – (Finsbury Park), N5 – (Highbury), N6 – (Highgate), N7 – (Holloway), N8 – (Crouch End, Hornsey), N9 – (Lower Edmonton), N10 – (Muswell Hill), N11 – (Friern Barnet, New Southgate), N12 – (North Finchley), N13 – (Palmers Green), N14 – (Southgate), N15 – (Seven Sisters), N16 – (Stoke Newington), N17 – (Tottenham), N18 – (Upper Edmonton), N19 – (Archway, Tufnell Park), N20 – (Whetstone), N21 – (Winchmore Hill), N22 – (Wood Green).
North West London: NW1 – (Camden, Regent’s Park), NW2 – (Cricklewood, Neasden), NW3 – (Hampstead, Belsize Park), NW4 – (Hendon, Brent Cross), NW5 – Kentish Town, NW6 – (Kilburn, Queen’s Park), NW7 – Mill Hill, NW8 – St John’s Wood, NW9 – (Colindale, Kingsbury), NW10 – (Willesden, Harlesden), NW11 – (Golders Green, Hampstead Garden Suburb).
West London: W1 – (Mayfair, Soho, Marylebone), W2 – (Paddington, Bayswater), W3 – (Acton), W4 – (Chiswick), W5 – (Ealing), W6 – (Hammersmith), W7 – (Hanwell), W8 – (Kensington), W9 – (Maida Vale, Little Venice), W10 – (Ladbroke Grove, North Kensington), W11 – (Notting Hill), W12 – (Shepherd’s Bush), W13 – (West Ealing), W14 – (West Kensington).
South West London: SW1 – (Westminster, Victoria), SW2 – (Brixton), SW3 – (Chelsea), SW4 – (Clapham), SW5 – (Earl’s Court), SW6 – (Fulham), SW7 – (South Kensington), SW8 – (Vauxhall), SW9 – (Stockwell), SW10 – (West Brompton), SW11 – (Battersea), SW12 – (Balham), SW13 – (Barnes), SW14 – (Mortlake, East Sheen), SW15 – (Putney, Roehampton), SW16 – (Streatham), SW17 – (Tooting), SW18 – (Wandsworth), SW19 – (Wimbledon), SW20 – (Raynes Park, South Wimbledon).

Frequently Asked Questions (FAQ)

Do you install fire alarms in both homes and businesses?

Yes. We install domestic fire alarm systems to BS 5839-6 and commercial systems to BS 5839-1:2025.

What type of fire alarm does a house or flat need?

Most homes need mains-powered, interlinked smoke and heat alarms with battery backup, installed in line with BS 5839-6. The exact grade and category depend on the size and layout of the property and the fire risk.

Can you replace or upgrade an existing fire alarm?

Yes. We can assess your current system, keep suitable parts where it is safe to do so, and replace old or unreliable equipment.

How long does a fire alarm installation take?

It depends on the size of the property and the type of system. We will confirm the timescale with your quote, and for businesses we can work outside opening hours.

Will there be much mess or disruption?

We plan cable routes to keep damage to a minimum, use dust sheets and tidy up at the end of each day.

Will I receive certification after installation?

Yes. Once installed, the system is tested and commissioned, and you receive the certification and documentation in line with BS 5839.

Book a fire alarm installation with us

We are NAPIT-accredited electricians providing fire alarm installation for homes and businesses across all London boroughs. From interlinked Grade D1 smoke and heat alarms to addressable commercial systems, all work is carried out to BS 5839 and BS 7671, with full testing and certification on completion.

Contact us to book your fire alarm installation or to discuss your requirements.

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Fill in the form below with your details and a brief description of your requirements and we will get back to you within 12 hours.

      
   DIM Electrical Services
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   Adam B 
 
 
 
 Trustindex verifies that the original source of the review is Google. Really pleased with the work from Dimitri. We needed our annual emergency lighting and fire alarm inspections sorted, along with PAT testing, for our business in Willesden. Dimitri came out, went through everything properly, and talked us through what he found. If your business needs emergency lighting, fire alarm inspections or PAT testing in Willesden, these are the people to call.
  
 
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   Noah F 
 
 
 
 Trustindex verifies that the original source of the review is Google. Angelo installed a new circuit for me. He was responsive, quoted a very reasonable price, and the installation was neat and tidy. I'd be happy to use him again for any future electrical work.
  
 
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   Dom O'Keefe 
 
 
 
 Trustindex verifies that the original source of the review is Google. Angelo and Mo did an EICR check, fixed a couple of issues, and installed two new overhead lights in my flat. They were courteous, knowledgeable, and very professional throughout. I would recommend them to anyone.
  
 
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   Mike Dalmas 
 
 
 
 Trustindex verifies that the original source of the review is Google. Dimitri and Angelo were very professional and did the EICR on my property on time as. Highly recommended.
  
 
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   Spiro Ferro 
 
 
 
 Trustindex verifies that the original source of the review is Google. The guys(Dimitris and Angelo) were amazing. They arrived on time and completed the work neatly.
  
 
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   Julian Lipson 
 
 
 
 Trustindex verifies that the original source of the review is Google. Excellent electrician and service.  So reliable and communicative - very impressed.
  
 
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   Spiro S 
 
 
 
 Trustindex verifies that the original source of the review is Google. Dimitri provided a reliable and efficient service. The work was completed on time, and the team was professional and easy to communicate with. Highly recommend DIM Electrical Services(FindElectrician)
  
 
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   SW7 Construction & Design Ltd 
 
 
 
 Trustindex verifies that the original source of the review is Google. We’ve worked with this electrical contractor across many projects over the years, and they’ve been consistently outstanding. Dimo, Angelo and their team are reliable, highly skilled, and always delivers quality work on time. Communication is clear and straightforward, making every project run smoothly from start to finish. They’re proactive, solution-focused, and a pleasure to collaborate with. We wouldn’t hesitate to recommend them to anyone looking for dependable and professional electrical services.
  
 
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   David Ellis 
 
 
 
 Trustindex verifies that the original source of the review is Google. A Rare gem ! Friendly, professional with 5 Star service and work. A company that goes the extra mile in servicing and supporting their clients. We have been customers for several years and have come to trust and depend on this service as part of out team! With Thanks David Ellis Managing Director Peaceful Solutions Ltd