A range of steel security doors, fire doors, personnel security entrance doors, communal security entrance doors, boiler doors and substation doors supplied and installed by Alliance Security Installations. These include a wide range of door furniture and locks and our security doors include as standard, minimum 3 steel hinges, anti-jemmy strip, weather seal, two types of bottom threshold, inward or outward opening, frame, 17mm dia dog bolts.

All our security doors are manufactured from between 1.2mm & 2.0mm thick steel (dependent on door) and all are supplied with frames manufactured from 2mm steel. All doors are made to measure, polyester powder coated for durability and include up to 10 colour choices.

Case study:

Our Fire Exit Doors are supplied with a range of emergency exit hardware as standard, outward opening, spy viewer and signage. For additional security the door can be fitted with internally operated deadlocks or external override locking mechanism.



Case study:

These Communal Security Entrance Doors are typically used in shared entrances. The doors can include vision panels and operated via key pad or key fob. Commonly used on schools, flats and residential areas, heavy duty door closures ensure the door returns to the closed position. Safety features include emergency override panel.



Case study:

These Substation / Boiler Doors are designed for sites where ventilation is required but still need to function as a strong security door, typically used on plant rooms, storage rooms and substations. Available with a range of security locking devices.