Profile: Kaiser Doors Ltd. specializes in manufacture, installation, repair and maintenance of commercial & industrial doors. We are an ISO 9001:2008 certified company. Our product line includes roller shutter, high speed, sectional overhead & industrial steel doors and PVC strip curtains. Our roller shutter doors consist of a curtain of interlocking slats which form a continuous hinge along their entire length and it permits the curtain to roll up or down as it is raised or lowered onto a revolving spring loaded barrel which is mounted onto steel support brackets.