Preferred By Police

Secured by Design (SBD) is the official UK Police flagship initiative supporting the principles of ‘designing out crime’. The Endurance® door range has been designed, tested and achieved the standard. The Secured by Design standard upgrade includes – Federal UCF locking cylinder and laminated glass.

The Endurance collection of composite doors has been designed, tested and assessed to ensure they meet SBD requirements. This means that they have been tested to PAS 24 2012 and have shown complete compliance. We understand the importance of feeling safe in your home, which is why we only offer you the most secured designs.

The Secured by Design testing process is intense and comprehensive, comprising:

  • A manual attack on the locking hardware with tools including a crowbar and mole grips.
  • An unlimited number of 3-minute attacks on the door cylinder using a range of tools such as craft knives and screwdrivers.
  • 3-minute manual attack using chisels and brick bolsters to gain entry through the door.
  • Hard body impact test – impacts are applied to the door leaf at hinge points and locking points using a 50kg steel impactor.
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  • Locks

    The Federal UCF Locking Cylinder lock has been designed with modern security in mind and offers contemporary standards of performance and design. This intelligent lock has a system that responds to attack and creates a robust barrier to protect your home. You can enjoy the complete peace of mind that comes with an SBD approved design.

    This lock is expertly integrated into the composite door frame to ensure that it cannot be easily accessed by any would-be intruders. This means that it is encased in the door slab, without affecting how it operates. We understand that for you to feel at home you need to feel safe, which is why we strive to ensure high levels of security are kept consistent.

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  • Hinges & Glass

    The hinges that we offer with our composite doors are designed to meet the requirements of PAS 24:2012 as part of a compliant door system and BS 6375. We also ensure the security of the pin is achieved by a concealed grub screw. This prevents unauthorised access by lifting off an outward opening composite door.

    All our doors are glazed with a 4mm toughened safety glass, either double or triple glazed. This glazing design meets BSEN1279 standards for complete door protection. All Endurance sealed units are secured using a cassette glazing system that has been independently tested and approved to the PAS 23/24 standards.

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Design Your Door

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Idemne, quod iucunde? Paria sunt igitur. Eaedem res maneant

Why Are Secured by Design Composite Doors Important?


Our Secured by Design composite doors offer a standard of protection that ensures the property they are installed into are 75% less likely to be burgled, showing a reduction of 25% in criminal damage. This shows that they will prove to be an invaluable addition to any property, ensuring your home, your family and you stay safe.

  • Professionally Installed

    As experienced installers we understand that a poorly fitted composite door can pose a security risk in your home, which is why we make sure our installers demonstrate competency when handling our doors.

    No matter which door you choose, from whichever collection, you’ll be able to enjoy the very highest standards that the industry has to offer.

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  • Design for security

    We understand that 73% of household burglaries occur via the front door, which is why we always ensure that security is a core aspect of your door designs. We ensure this by putting our doors through rigorous testing processes, which are designed to replicate the most common forms of attempted burglary.


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  • Solid to the core

    Our doors are renowned for their strength, solidity and security. They feature a modern design that includes 17 layers of engineered timber laminates, making our doors at 48mm thick, up to 10% thicker than our competitors.

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Design Your Door

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