Proudly announced that Castle Core Ltd proved its door strength with Security Steel Door Testing in German Laboratory. Unbelievable methods and technics been used, that also been used by professional burglars. 12 years’ experience and precise engineering resulted with Grade 4 door. Our installation methods also gives additional strength to overall structure. Our door can provide ultimate security to your homes, offices and where ever security needed. Steel security doors with fantastic wooden finishes, veneer, engineered wood or hard wood facing can be applied to our doors.