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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  • Dr P Darling Basingstoke, Hampshire

    Have been with CIA for over 10 years now and they have never disappointed me.  The system designer showed a great deal of professionalism and expertise as well as being personable.

  • Mrs M Munday Portsmouth, Hampshire

    The technician was helpful and explained what he was doing, making me feel at ease about the service visit and even showed me new features that we can use.

  • Mrs N H***** Bournemouth, Dorset

    Engineer arrived on time and was very friendly, willing to take on board our comments regarding box location from the moment he arrived – He went through the system and demonstrated it several times.  He was thorough in his testing.  He took extra care to hide the cabling, swept up and even offered to vacuum!

  • Mr L********* Rowlands Castle, Hampshire

    CIA are easy to contact and their staff are helpful.

  • Mr Evans Denmead, Hampshire

    Technician was excellent, took care of my property, hoovered as he went along and took the time to channel the wiring properly and back filled as required – Absolutely first class service.  I was hesitant to use CIA but friends recommended them and I am very pleased that I followed up on their advice.

  • Ricara Ltd Brighton

    Always helpful, always proficient, efficient and effective.

  • Mr D Gxxxxx Cosham, Hampshire

    Friendly, helpful and accommodating.

  • Mr *** Petersfield

    Very neat and tidy installation.  Very considerate with young family.  Professional and efficient service throughout the whole process.

  • Dr xxxxx Hampshire

    Your staff are always pleasant, helpful and informative.  It is also nice to have the same person every time to do the service.

  • Mr T xxxxxxx Portsmouth, Hampshire

    The service we receive is excellent and always has been.