High Quality Steel Security Doors in London

Combining style with security, our wide range of Exterior Front & Back Doors includes glazed and panelled options in materials ranging from softwood & hardwood to metal & PVCu.

We have been providing quality commercial and industrial steel doors to residents and business owners in the UK for many years. Protecting your castle and its stock is now made easy with our options when it comes to our industrial doors, depending on your level of requirements.

At RNB Engineering we focus on the most important aspect of industrial and commercial doors – its strength. Our competitors constantly use light weight (0.8mm thick) material. The hinges are set into these waste concrete which makes maintenance impossible and their industrial doors useless once damaged. We can custom fabricate any commercial security door in London to any size and need, all our products are made to suit your project.

Local Authority’s contact us to remove old doors and replace them with new high quality industrial and commercial steel security doors and frames. If one of your commercial doors has been damaged through forced entry, we can come out and provide you with a free quotation,and if you require us to secure the old door and then remove and replace it with one of our industrial products, no problems.

Commercial Security Doors and Frames

RNB security steel doors and frames offer an unbeatable specification and range for a UK manufactured door. These doors have a wide variety of applications for commercial and residential use.

  • Made to measure security doors and frames
  • Optional viewing panels, side panels and over panels
  • Exceptional 11 point security locking including 4 hinge bolts 17.5mm
  • Electronic locking via maglocks and keypad entry.
  • High performance solid stainless lever handles
  • Attack resistant anti jemmy over lap edge strip and escutcheon plates
  • Heavy duty stainless steel hinges BS.EN1935.2002 grade11
  • Whole range of stock doors and made to measure
  • Assa sash and deadlock options
  • 3 Security levels available Strongfix 12, 16 & 20, 2hr fire rated
  • Spy holes, letter box and door closers
  • Single and double panic bars for fire exits  also security 3 point locking
  • Powder coat finish to our std stock colours. Ral Nos on request

Fire Exit Doors

We can supply, install & certify custom manufactured steel sheeted fire safety doors. Prolong the life of the door(s) with a choice of zinc, galvanised steel & stainless steel.
Choice of thickness to suit your requirements.

External Fire Exit Doors

We can also supply, install & certify custom manufactured external fire & safety doors. Range of sizes, thickness & fire Rating options. Special coating external grade fire doors for long life external grade custom doors.


RNB Engineering is experienced at Council Projects and offers a comprehensive Metal Fabrication Services for all Local Authority Projects and Social Housing Developments. Our work includes manufacture and installation of Refuse Chutes, Fire escapes, Handrails, Barriers and Security Gates. We also offer site Repairs and Maintenance of existing structures and fitments.
Our team have the knowledge and technical ability to complete their work to a high standard, taking into consideration the most recent regulations. We provide detailed quotations for all types of metal and steel work, and advise on specific project requirements, including on-site surveys.