Allder Group - Glass and Locks

Allder Group - Glass & Locks

Window Films

We have experienced film fitters in house dealing with everything from matching up single pane replacements to the filming of complete glass fronted buildings. This can be a very cost effective way of dramatically changing the appearance of a building whilst also making the working conditions inside the building so much more pleasant for the people within. It can reduce glare and heat gain whilst offering security against smashing through the glazing. We are dealers for Bekaert Films, founded in 1880. For full information see

We offer bespoke manifestations and window graphics as well as standard requirements for legislation for DDA and regulation 14. We are pleased to offer free Regulation 14 surveys identifying locations and glass types at risk or outside of current legal regulation. Glazing can be upgraded to comply to the current British and European safety standards.

  • Solar Control
  • Safety
  • Privacy
  • Obscuring
  • One way
  • Manifestations
  • Regulation 14 Surveys

Regulation 14 Part N1

We are happy to carry out a free Regulation 14 survey to identify areas that may be of concern to you. It is the responsibility of the Senior Management of every establishment where people are employed, or to which the public have access, to ensure that all of their glazing conforms to this retrospective legislation.

View the Regulation 14 Technical Booklet (PDF)


Glass entrance doors and glazed screens Part M

Note: Where there appears to be a conflict between the guidance in Part M and Part N, Part M takes precedence, see the Notes to the Requirements.

Design considerations

2.22 - People with visual impairment should be in no doubt as to the location of glass entrance doors, especially when they are within a glazed screen. The choice of a different style of manifestation for the door and the glazed screen can help to differentiate between them.

2.23 - The presence of the door should be apparent not only when it is shut but also when it is open. Where it can be held open, steps should be taken to avoid people being harmed by walking into the door.


2.24 - Glass entrance doors and glazed screens will satisfy Requirement M1 or M2 if:

  • they are clearly defined with manifestation on the glass at two levels, 850 to 1000mm and 1400 to 1600mm above the floor, contrasting visually with the background seen through the glass (both from inside and outside) in all lighting conditions;
  • manifestation takes the form of a logo or sign at least 150mm high (repeated if on a glazed screen), or a decorative feature such as broken lines or continuous bands, at least 50mm high;
  • glazed entrance doors, where adjacent to, or forming part of, a glazed screen, are clearly differentiated from it by the provision of a high contrast strip at the top, and on both sides;
  • glass entrance doors, where capable of being held open, are protected by guarding to prevent the leading edge constituting a hazard.