Security Doors


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020 8981 5400

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Our Security Doors

High Quality Standard

Unique structure door consisting of metal profiles and sheets brings out all the difference. Made from steel and dressed in wood – EDM, wood veneer, UMIDAX or painted metal finishes so nobody can say that it’s a high security door. Mineral wool is placed inside – it gives incredible noise isolation (44db) and thermal insulation (1.2W/m2K) qualities.

Knight’s Mark security doors comes with a three directional locking system as standard. You can have an optional security door chain (for unwanted forced entry), additional door bolts or additional anti-drill lock upon request. Door leaf construction is created from closed metal sections and 1.5 mm (can be thicker, depending on the level of security you choose from) steel sheet from outside.

Recent projects

Security doors have been acknowledged with various certificates. They been tested against a push force of up to 1040kg (small car weight) and various break in tools – axes, hammers, chisels, screwdrivers, crowbars and drills! If the security doors are ordered with side/top windows – it would be triple glazed as standard and most importantly the glazing would be laminated, specially treated and toughened for security reasons.

If you need an extremely high level of safety we also offer ‘Fortress’ level security doors which can be made bullet proof and (or) blast proof. Security shop front windows (for any high street shops that has valuables kept overnight), panic rooms or safe rooms can be quoted as well.

Due to sophisticated computer software any design doors can be created. Every security door is bespoke and made to measure. Conservation area and listed building doors can be replicated. Knight’s Mark manufacture security doors that incorporate aesthetic values with high functionality and utility. Over 200 templates to choose from – if you are not certain about the design. Variety of door furniture – lever or knob handles, centre knobs, letter boxes, spyholes…

We personally guarantee that your property will definitely be secured from uninvited guests at all times. For further details please get in touch.


Customer Feedback

Dee & Harry
Kent, ME7

Myself & Dee would like to thank you for our product, the service & installation. All aspects were described & communicated very well with care & professionalism from inception to completion. Needless to say we’re extremely pleased with the end result.

London NW3

They installed a fully electrified door that is operated via fingerprint scanner on the outside and a button on the inside – no key required. It looks like a regular door (with beautiful exterior) but is actually a massive, high-security steel behemoth that I know will keep my possession safe.

London N3

Just few lines to say that I am very pleased with my new front door. This product meets my security needs and looks perfect. The door itself is beautiful and very well made .Thank you for the excellent service!

Take The First Step

And Contact Us

We are professionals throughout the whole supply chain and specialise in design, manufacturing and fitting of security doors and windows for over 9 years. The company offers a wide range of doors and windows for houses, apartments, vaults, hospitals, hotels, theatres and many other public and privately owned buildings.

Highly motivated team is ready to evaluate your home or business facilities and match the best security options for you.
We allow our customers to be a part of the business and give the possibility to make their own door design. This way you can put your personal touch on the final product and make it unique.

*Maximum 3 files (10mb file limit).

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