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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 (waterproof UMIDAX, EDM, veneer, solid oak) or painted metal finishes so nobody can say that it’s a high security door. Mineral wool is placed inside for maximum sound and thermal isolation. Our doors have been acknowledged with the highest certificates. All our security doors can be made fire resistant up to 60 minutes. The security doors Knight’s Mark provides comes with a multi-point lock system. Door hinges come with supporting bearings and covers. You have an optional secret door chain if requested. Door leaf construction is created from closed bended metal sections and 1.5 mm (can be thicker, depending on the level of security you choose from) steel sheet from outside. We personally guarantee that your property will definitely be secured from uninvited guests at all times.

Recent projects

Knight’s Mark doors are custom made and constructed individually – any style or shape. Over 200 design templates to choose from variety of door furniture: lever or fixed handles, centre knobs, letter boxes, spyholes, door numbers and an optional secrete door chain for unwanted forced entry. Due to sophisticated computer design software we can design and replicate any doors as well as UK listed building security doors. We manufacture our doors that incorporate aesthetic values with high functionality and utility.

Testimonials

Customer Feedback

Timo
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.

Mathew
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!

Ruta
London SE6

Now I have the safest door across the street. I was very pleased with high quality and timing. The choice of modern glass and door accessories are marvellous. I will definitely recommend your company to any potential clients

Knight’s Mark Security Doors Level 1 (RC1):

Level 1 gives you an enhanced security door that you could not get from just any high street or big name shop. It offers you noise (41 dB insulation) and thermal isolation (1.3W/m2K). Hinges are covered with protective roll pins. Most importantly it gives the security against lock picking/bumping, cylinder drilling or doors trying to be kicked out. These doors are also recommended by ‘Secure by Design’.

Knights Mark Security Doors Level 2 (RC3):

Level 2 Security Doors offer you a higher noise (43db) and thermal isolation (1.35W/m2K) and a more enhanced security. These type of doors protect you not only from lock picking and cylinder drilling. Inside the door you have a drill resistant steel plates installed to protect the hinges and the locks, also the edges of the doors are tightened to prevent crowbar break ins. Level 2 security doors are also recommended for domestic/communal premises.

Knights Mark Security Doors Level 3 (Fortress – RC4):

Level 3 Security Doors or Level Fortress security doors has got an outstanding noise (45db) and thermal (1.5W/m2K) isolation levels. It offers complete security against burglary or theft. This level security doors has went through extensive testing to achieve a very high level of resiliency. ‘Fortress Level’ doors are designed for buildings with high level of security needed. It can withstand heavy duty tools, light duty hydraulic tools and ramming. The locks are protected with 2 drilling resistant manganese plates. These type of doors are offered with an optional bullet-proofing and (or) blast proofing. Resistant up to 9mm handgun and can come with a triple glazed or bulletproof window.

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.