Doors are designed to receive maximum benefit through space, accessibility and convenience. Automatic doors are common in areas including shopping, offices, clubs, pubs, recreational centres, hospitals, and others. Bi-fold and stacking doors are a convenient and effective way of opening a large area and housing all the doors in a small compact location. These types of doors are most commonly used in clubs, cafe’s, restaurants and buildings that connect to an outdoor area.At alert4shutter we can supply and install to your requirements. We supply and install Shopfronts/Entrances, Bi-fold Doors, Air locks, Internal walls/doors etc. What that means for our clients is complete control over the requirements.