




Endless bespoke security solutions to suit your home or business perfectly
We are extremely dedicated to producing the finest, strongest and most beautiful security doors in the world.
With state of the art protection in mind, our doors are proudly Made in Britain.
Security Doors Factory Ltd. is where quality, craftsmanship, industry-leading technology and innovation come together and integrate our customers’ designs to create truly bespoke, and beautiful doors. We have a growing team of like-minded professionals with a joint target to create the most unique entrance solutions for our clients.
SDF is one of the most important UK door manufacturers. With its headquarters located in Swanley, has a large production capacity. Recently a new production complex has been built, fully modernized, here we manufacture all our products with the top-notch technology through automation and robotics.
Our Class 3 security doors can keep you safe from forced entries and burglaries thanks to our innovative designs and high-quality materials.
This specific range is perfect for properties or buildings that need an extra measure of security to protect them from forced entry and/or deliberate attacks – and these doors can even withstand bullets.
Our stylish steel doors are more than just strong - they’re literally impenetrable. Thanks to our broad variety of blast- and bullet-proof security doors, we can protect you from more than just forced entries.
Your home and business security needs often range further than your front door. Thanks to our use of ISEO locks and Euro Cylinders, our light-weight yet strong side-gates keep your property safe by blocking any alleyways or passages.
Rest assured, no matter which material you choose,
you’re getting a door built with authentic stile.
A steel door is your best bet if security and durability are top priorities. Steel units are stronger than wood or fiber glass doors, and they won't crack or warp.
Our doors also come with a choice of various multipoint locking systems as standard. We can also integrate biometric, app based or motorised access solutions upon request.
Ironmongery comes in a range of beautiful finishes, modern or traditional designs, sizes and materials, so we can perfectly match and style your door furniture to your door with refinement and luxury, whether it’s for a residential or commercial application.
Wide range of customisable design options mean we can copy aspects of an existing door to match an original design, come up with something completely new and bespoke, or replicate on a like-for-like basis to ensure compliance with even the most strict heritage and conservation requirements.
Both interior and exterior doors are made from a variety of materials, the most common being wood that sometimes is in combination with glass.
Click here to see our full working process.
It is our attention to detail that completes the design process and transforms a simple piece of metal and wood into a work of art.
With a world-class CNC milling machine from HOMAG, we can greatly expand the capabilities, performance and output of our production, all whilst mainta
With manufacturing and computer technology developing rapidly, CNC machines can punch anything from simple shapes such as circles or squares to more c
Our skilled team of joiners and panel preparing team will ensure that every commission and item of joinery is made with precision and care. We use a v
Our computer numerically controlled (CNC) bending is a sheet metal folding process that is carried out by CNC press brakes. These machines can bend sh
The start of the spraying process begins with preparation. Before any items enter the spray booth the MDF materials are carefully hand sanded by our d
A MIG welded carcass serves as the main skeleton of our door and provides the base to attach our bespoke panel work. The ability to weld together vari
At Security Doors Factory Ltd. we have worked long and hard to establish ourselves as one of the leading spray painting facilities in the UK. Spray pa
Powder coating all of our metal door parts offers several advantages over conventional liquid coating methods. For example, we use zinc primers that p
At this sensitive point, we always take extreme care and expertise of successful marriage of wood and steel, newest high tech locking devices, with be
We ensure that our customers receive our products in immaculate condition, suitably packed and protected whilst in transit. Our final assembly team wi
Click ‘‘Contact us‘‘ and fill out your details below and one of our customer account managers will be in contact within the hour. If you'd prefer to talk to one of our team members please call us on +441322 665922