Residential Security Doors

Residential Steel Security Doors are inherently less susceptible to attack than wooden doors and frames. No longer do they have to be “grey monstrosities” but come in a range of finishes including wood grain.

Approved certified bodies have tested this range of High Security Doors up to level 4 security using a variety of tools, simulating attacks. Certificates are held for both anti-burglary and bullet proof grades of door.

On selected doors there is a 10 year manufacturer’s warranty ensuring that these steel security doors offer lasting peace of mind.

Door closing devices can be fitted to any Steel Security Door or Fire Door and are 2 hour fire tested, BS EN 1154 and BS EN 1634. Door closing devices are vitally important in the control of fire and smoke and consequently save lives. Fire-resisting doors (other than those to locked cupboards and service ducts) are usually required to be self-closing in accordance with building regulations.


We supply all types of Steel Security Doors as either a replacement or for new build properties. The security doors can be fitted with a range of high security multi-point locking systems and stainless steel hinges.

Not only do we supply standard steel personnel doors but we can also provide a tailor made steel door for openings of a non-standard size such as fire exit doors and panic bar doors. A more heavy duty door can be fitted to suit particular applications of heavy usage and vandalism and all of our doors can be fitted with electronic locking systems for access control.

Theam Security also fit a wide range of composite residential doors the door leaf being a foam engineered core, surrounded by a laminated timber veneer substrate. The surface of the door shall be made from a vacuum formed 20mm (min) acrylic capped thermoplastic skin bonded to the foam core in a one-step pressing operation. The door leaf colour range being red, green, blue and white wood grain finish. Options for oak and mahogany wood grain finishes shall be available. All surfaces shall be stable against UV light.

High definition that looks like wood with 30 minute fire resistance on fire door range. Secured by Design installations.