Two AB Key engineers unloading a tool case from a van on a South London street

About AB Key. Keeping London's buildings secure since 1998.

Crayford, KentSince 1998

Our commitment is to deliver an excellent service and security solutions that are dependable, reliable, long-lasting and cost-effective.

About AB Key

An AB Key engineer fitting an access control reader at the glass entrance of a block of flats at dusk

AB Key is a leading security solutions partner and a one-stop shop for access control, CCTV, door entry, gates and barriers, automatic and fire doors, fire stopping, ironmongery, and glass and glazing.

Who we work with

  • Local Authorities
  • Residential buildings
  • Schools and universities
  • Warehouses
  • Retail stores
  • Block management

Our story. Built on one trade. Grown around our clients.

AB Key was founded in 1998 with an initial focus being locksmith service. Our reputation grew quickly, and our clients were asking us to look after more of their sites requirements.

Over the years, we have expanded our services to meet the changing needs of the sites.

Our services we now provide are installation and maintenance for access control, door entry, CCTV, wooden & metal Doors, gates, and bespoke glass and glazing.

AB Key is an end-to-end security solutions business, based in Crayford, Kent, looking after residential and commercial portfolios across London.

How we work.

  • One point of contact
  • Clear quotes
  • Photo evidence on completion
  • Planned maintenance options

Our team. Directly employed engineers.

Our engineers are directly employed, with a specialist lead for each service.

We’re always looking for skilled engineers. See careers, or email your CV to office@abkey.co.uk.

Our values

We don't just provide security, we deliver peace of mind.

  • 20+

    Years of industry experience

  • 9

    Services under one roof

  • 1998

    Established in London

  • M25

    Covering London within the M25

The AB KEY values

  1. Accountability

    We take ownership of every job, every customer interaction, and every promise we make.

  2. Better together

    We build strong relationships with our customers and colleagues, working as one team to deliver exceptional security solutions.

  3. Knowledge

    We continually develop our skills and expertise to provide trusted advice and industry leading service.

  4. Excellence

    We strive for the highest standards in workmanship, reliability and customer care.

  5. Yes we can

    We approach challenges positively, find practical solutions and do everything we can to keep our customers’ sites safe, secure and operating smoothly.

Accreditations and clients

Accredited by

Trusted by

What our clients say. In their words.

Read all our Google reviews (opens in a new tab)
  • Rated 5 out of 5.

    “When you want a good service, you call a contractor. When you want a 'great' service, you call AB Key. From the director, office, the operatives, there has never been a fail with the service for the last 12 years.”

    M. MGoogle review
  • Rated 5 out of 5.

    “I just wanted to provide some feedback for the engineer Paul. He was extremely helpful and promptly resolved two long-standing issues. We are very pleased with the service we received. We have used AB Key here at our development for a number of years and they have never let us down.”

    Upton GardensGoogle review
  • Rated 5 out of 5.

    “The team at AB Key were excellent! … The team are highly professional, skilled and very polite. I would certainly use AB Key again and will be recommending them to friends and colleagues.”

    Sian WilliamsGoogle review

London within the M25.

Based in Crayford, Kent, covering London within the M25.

  • Greater London
  • Our base in Crayford
Unit 23 Mulberry Court, Bourne Industrial Park, Bourne Road, Crayford, Kent DA1 4BF
Map of London and the surrounding counties, with AB Key's base in Crayford marked
Boundaries: ONS Open Geography, Open Government Licence v3.0.

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