Covert Installations Ltd is a well-established, completely independent company. With over 10 years' experience, we offer you a completely mobile service covering London and the South East of England, and the reason we have to restrict our coverage is because we do not sub-contract our work. We will come out to you at home or at your place of work whichever is more convenient. We offer a 24 hour helpline once the product has been installed. Areas serviced: Bexley & Dartfordwww.covert-installations.com42 Lower Station Rd Crayford, DA1 3PY

Safetell (The name is derived from Safety for Tellers.) was founded in 1984, providing bullet-resistant rising screens to protect high street banks against armed robbery. Since then, we have installed our screens in more than 3,000 bank branches and have developed a comprehensive range of moving and fixed screens with varying levels of attack resistance. To complement the staff protection screens, we have a family of cash handling equipment to improve cashier efficiency and reduce robbery losses. Areas serviced: Bexley & Dartfordwww.safetell.co.ukUnit 46/Fawkes Av/Dartford Trade Park, DA1 1JQ

Specialist Security (UK) Ltd provides a highly professional and quality service, working in partnership with our clients to offer total security solutions. We offer a complete range of manned guarding services whilst committing ourselves to maintaining the highest service levels. Our professional security services are enjoyed by a wide range of customers, many with vastly different needs. By offering each customer a completely dedicated and tailor made service, we can satisfy all of their individual and specific security requirements. Areas serviced: Bexley & Dartfordwww.specialistsecurityuk.com4 Summerhill Rd, DA1 2LP

Established since 1993, we are a fully inspected and licensed member of the Master Locksmiths Association, with staff well trained in locksmith skills and encouraged to become MBLI full members. We specialise in code cutting of keys to vehicles and for office furniture and lockers, with computer operated machines that can duplicate virtually any key code. Areas serviced: Bexley & Dartfordwww.locksntools.co.uk1B Princes Av, DA2 6NE

Doorentryonline Ltd is a National distributor of audio door entry intercom systems and video door entry intercom systems as well as access control systems, magnetic locks, exit buttons, power supplies, audio door entry intercom handsets and much more - all designed for ease of use and peace of mind, not to mention simple to install, value for money and delivery at ??7.95 - FREE with orders of ??250.00! Areas serviced: Bexley & Dartfordwww.doorentryonline.co.ukMill House/Priory Road, DA1 2BZ