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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  • Paul Moody Chichester, West Sussex

    Both the system designer and the install team were excellent. I am really pleased with the end result.

  • Mr M Sxxxxxxxxxxx Waterlooville, Hampshire

    Polite attitude of your technician, minimum disruption.

  • Mr D Gxxxxx Cosham, Hampshire

    Friendly, helpful and accommodating.

  • Alan Jones Newbury, Berkshire

    We always receive excellent service from CIA. We also appreciated the text reminder about the service appointment.

  • Mrs J Gxxxx Southampton, Hampshire

    Technician and office always pleasant.

  • Mrs T Kxxxx Fareham, Hampshire

    Your staff are always pleasant, helpful and informative.  It is also nice not having a different person every time we have a service.

  • Alan Jones – Newbury, Berkshire

    We always receive excellent service from CIA. We appreciated the text ‘reminder’ about the service appointment.

  • Mr D***** Hayling Island, Hampshire

    Very Polite, cleared up any mess he made. Hardly knew he was in the house.

  • Bourne IFA Alton, Hampshire

    Your technician provided a first class service and we would have no hesitation in recommending your company.  Excellent. Thank You.

  • Mrs ****** Chichester, West Sussex

    Recommended by a family member so have not had anyone else to quote.  Hard reputation to follow!