Steel Security Doors

K fire-door-1& D Systems have been specialising in steel doors for over thirty years, providing quality steel doors to some major companies all around the UK.

From supply through to installation of high strength and high security steel doors, we can help, whether that be for commercial or industrial security, or emergency and fire exits.

Steel doors are an important component to fire safety as they reduce the damage and danger that fire causes, confining smoke and flames to smaller areas – as do fire curtains and smoke curtains.

Why choose us?

At K & D Systems, we are steel security door specialists and only provide our clients with the highest quality security systems.


We supply and fit the Metador Defender; the only doorset that is manufactured from galvanised steel and an insulated mineral wool core.

Our steel security doors are easy to install and guarantee to help reduce the spread of fire and allow occupants to escape a burning building safely and unharmed.

A steel door is fitted with an intumescent strip along all of the sides. During normal use, this strip seal will lie dormant, however, in the case of a fire it will expand due to the extreme heat to create a strong barrier from the blaze.

6 reasons to trust K & D Systems

  1. We’re amazing value for money: all our manufacturing takes place within our plant in Sunderland.
  2. We have a team there to respond to all quotes within 24 hours.
  3. Our installation team have over 30 years’ fitting experience.
  4. We offer controlled descent and gravity fail safe systems.
  5. We are continually investing in research and development.
  6. We offer a 3 day turnaround time* on production.

*3 day turnaround time subject to certain restrictions; please ask us.

Get in touch today!

Free bespoke quote within 48 hours