about us

Costello Security has provided a premium manufacturing and security service for many years to both residential and commercial customers.

We are a customer focused company that enjoys success in a competitive security market by giving our customers that little bit extra.

Most of our work comes by recommendation, so we know that what we do works. If you have any security requirements or need a fast and reliable locksmith - call us today. We will arrange an appointment if it's a security installation enquiry, or send an engineer if it's an emergency within an hour!



With our local offices based in Banstead and Central London, we are perfectly placed to provide our high quality security installation, maintenance and repair service to customers throughout the London boroughs, home counties and across the South East.



We are delighted to undertake regular repeat business from a mixture of commercial and residential clients in the area, including Croydon, Battersea, Wimbledon, St Johns Wood, Islington, Camden, Twickenham, Richmond, Chelsea, Fulham, the city of London, Knightsbridge, Kensington, Clapham, Balham, Kingston upon Thames, Sutton, Reigate, Guildford, Woking, Slough, Reading, Leatherhead, Caterham, Coulsdon, Crawley, Enfield, Romford, Epsom and Watford.



If you would like to know more about our comprehensive security installation services, please do not hesitate to contact our friendly team.