A Hammersmith locksmith, since 1948.
Since 1948. The YY name goes back to Young and Young, Hammersmith locksmiths. YY Security Installations Limited was incorporated in 2014.
Seventy-eight years, one address.
Founded in 1948 by the Young brothers in Hammersmith, Young and Young grew through the late 1980s and early 1990s from a local locksmith into a London and nationwide contractor.
The company won a London Underground contract in the 1980s and has worked on the network for thirty years since. It carried out security work for the London 2012 Olympics, including the Olympic Village, and the 2013 Anniversary Games.
Today YY Security Installations Limited employs 64 people directly and runs 40 vans, from a shop on King Street, a trade counter at Canary Wharf and an operations base in Uxbridge.
Staff and vans from YY’s 2025 certificates. History from the company’s earlier websites.
1948 to today.
1948
Founded in Hammersmith
The Young brothers set up Young and Young as a locksmith and security business in Hammersmith.
The Young and Young Security Services logo. From the company's 2012 website. 1980s
London Underground
Young and Young wins a London Underground contract and goes on to work on the network for thirty years.
On site. From the company's 2016 website. 1990s
London and nationwide
Through the late 1980s and early 1990s the company grows from a local locksmith into a London and nationwide contractor.
YY van. From the company's 2016 website. 2001
Young and Young Security LLP
Young and Young Security LLP is registered at 182 King Street, Hammersmith. Shane D'Moirah becomes director of alarms, CCTV and access control.
2012
London 2012
Security work for the London 2012 Olympics, including the Olympic Village, and the 2013 Anniversary Games.
King Street, Hammersmith. From the company's 2012 website. 2014
YY Security Installations Limited
YY Security Installations Limited is incorporated on 6 June 2014, director Stephen John Owens, at the same King Street address.
Today
Rail, commercial and homes
Station entrances, shopfronts, blocks of flats and front doors across London. 64 staff and 40 vans, from the company's 2025 certificates.
Who does the work.
Directly employed, not subcontracted.
- Directors
- Steve Owens, director. Shane D’Moirah, director for alarms, CCTV and access control.
- Fire doors
- Ryan Owens, BM TRADA approved person for fire door maintenance and fire stopping (No. 189).
- Head of rail worksSample content
- Plans night possessions and leads the station teams.
- Service desk leadSample content
- Runs the 24-hour line and dispatches engineers from Uxbridge.
- Alarm and CCTV engineersSample content
- Install and maintain SSAIB-certificated systems.
- Counter staffSample content
- Cut keys and supply hardware at Hammersmith and Canary Wharf.
- Fleet and storesSample content
- Keep forty vans stocked so most repairs finish on the first visit.
What customers say
Clear advice on the alarm and a tidy install. Very satisfied.
A customer for about eighteen years. My repeat key is cut and ready when I arrive.
Alarm, window locks and a safe, all fitted in one visit.
Tell us what needs securing.
Call the 24-hour line and you speak to a member of staff. Or book a survey online and get a reference you can track.