Thornhill Security Ltd


Established for more than 30 years, Sunray Doors are experts in the design and manufacture of steel security doors, fire rated doors and window grilles.

From their headquarters in Ashford, Kent, Sunray develop high security solutions for commercial and industrial premises across the UK.

Sunray’s products offer cutting edge security features including unique hasps, staples and vision panels which are used in industries such as energy, data centres, facilities management, government and more.

Sunray security products from Thornhill security

Sunray Door Products 

Sunray’s range of products has been rigorously tested to meet the Loss Prevention Certification Board (LCPB) and Loss Prevention Standards (LPS) security rating performance accreditation. Their products include:

  • Steel Security Doors – Tested and certified steel doors to greatly improve the security of your premises.
  • Fire Doors – High security doors which also provide fire resistance for up to 6 hours.
  • Louvre Doors – Security doors with excellent airflow characteristics.
  • Window Grilles – Robust window grilles that provide excellent resistance against forced entry.

Sunray pride themselves on their commitment to high standards and are one of the few companies in the UK to hold ISO 14001, ISO 9001 and ISO 45001.

Steel security doors offer the next level of protection when compared with traditional timber or newer uPVC doors.  In addition to providing a greater degree of resistance from forced entry, steel security doors have fewer maintenance requirements, are fire resistant, provide sound and heat insulation and are generally more cost effective long term.

Should a standard solution not meet your needs, Sunray offers a bespoke design service to ensure the door fulfils your security requirements.

 Sunray Doors at Thornhill Security

As a supplier of Sunray Doors, we offer a wide range of steel security doors to our customers. With cutting edge machinery, Sunray provides some of the best lead times on the market.  Our security team are familiar with Sunray products and can advise on the most optimal solution for you based on your unique requirements.

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Feedback from Our Customers

"Thank you for your very efficient service. Your men were so pleasant and competent. I will be delighted to recommend your company to anyone wanting a new safe or removal of an old one.”
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