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Collapsible Gates
Discreet security for all commercial and residential..

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Roller Shutters
Protect your building's weak points with our quality roller..

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Security Doors
Strongfix security steel doors and frames offer..

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Security Grilles
Your windows are your building's weakest point..


We know that the quality of both our security products and installation expertise will minimize your maintenance and repair costs in the long term. Despite this, various events, such as accidental misuse or vandalism, may create the need for repairs or maintenance from time to time.


Minimising disruption to your business or home security
Costello Security Installers recognize that in these unfortunate circumstances a fast response is crucial. Maintenance and repair work can cause costly disruption to any business, and failures of residential security equipment can leave your property unprotected and you and your family feeling exposed.


As well as the importance of securing high quality installations, it is vitally important to make sure your equipment is maintained throughout the year. We consider initial assistance in, and convenient access to information on, maintaining your security equipment a key part of our security service.


Alongside on-going maintenance know-how, it is important that you are covered against the consequences of damage, malfunction or accidental misuse. Our repair service is always available to quickly and effectively rectify any technical or mechanical problem you may experience.


24-hour availability
As attempted break-ins and other security breaches may occur at any time of the day, week or year, we provide you with the peace of mind that comes with a complete, round-the-clock call-out service.

We know that the need for emergency repair or maintenance services may surface at any time, and this is not within your control. In line with this, we will never charge you more for calling us out of regular working hours.


Operating from our central offices in Banstead, Surrey, we provide fast, convenient and highly responsive security aftercare to customers throughout the London boroughs and the Home Counties, including Epsom, Sutton, Coulsdon, Clapham, Balham, Purley, Croydon, Chelsea, Twickenham, Battersea, St Johns Wood, Richmond, Islington, Camden, Wimbledon, Leatherhead, Caterham, Beckenham, Harrow, Edgware, Fulham, Watford, Enfield, Romford, Kensington, Crawley, Dorking, Woking, Kingston upon Thames, Hounslow, Knightsbridge, Reigate and Guildford.


If you wish to know more about our various security services, please feel free to contact our friendly team.

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