High-Security Lock Cylinders

The average Euro profile cylinder can be snapped in seconds by burglars using simple household tools, and over 20 million uPVC and patio doors in the UK are at risk. These ranges of high security cylinders are designed to withstand attack. They are easy to fit in about 5 minutes – see our measuring and fitting guide and fitting videos.

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  • Mrs Ann Nash Woking, Surrey

    When I ring I speak to a real person who takes time to find my details and so can speak to me as an individual.  This personal contact is invaluable.

  • Roger Harvey Berkshire

    Customer service has always been good and a great deal of time and effort was put into sorting out the issues we had with the system when it was first installed.  We always found CIA to be a very reliable company and a company we would be more than happy to recommend.

  • Mr C Sxxxxxxxxx Fareham, Hampshire

    Very polite. Returned when he said he would as didn’t have enough batteries.

  • Mr P Mxxxxx Fareham, Hampshire

    All CIA staff seem to be friendly and keen to provide a good service.

  • Mr A Price, Price Motors Waterlooville, Hampshire

    All people I encountered were a credit to CIA.

  • Miss B********** Hedge End, Southampton

    The engineer is always polite and cheerful and takes care inside my house.  It is lovely to see the same engineer year after year.

  • Mr M Sxxxxxxxxxxx Waterlooville, Hampshire

    Polite attitude of your technician, minimum disruption.

  • Mr R Cecil Waterlooville, Hampshire

    Appointment change was easy – Engineer was very helpful – Good Service

  • Martin Carter Clanfield, Hampshire

    Always get good service and prices are competitive. Re-arranging appointments is easy and technicians always turn up as arranged.

  • Ms E Cxxxxx Emsworth, Hampshire

    Engineer turned up on the date and time specified. Did a good job and left the house tidy. The alarm works. Job done!

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