Welcome to Carlton House Cad We are the leading Fire & Security CAD specialists to the industry and we provide a wide range of cad services including fire zone plans and installation drawings that we believe will help you to concentrate on other aspects of your business. We also offer a brand new service called our large format plan printing service where we will print any drawing for you. Fire Alarm Zone Plans We create Fire Alarm Zone Plans to BS5839-1:2013 standard. From your marked up drawings that we receive, we then produce a professional and clear zone plan that allows the end user to quickly identify the origin of the fire alarm. Once complete we then will email the completed zone plan back to you in pdf and dwg format. If you would prefer we can print them and post them back to you. Print your large format drawings with us in 3 simple steps 1. You email us your drawings 2. We print them to your required size 3. We post them back to you It's as easy as 1 2 3!!!!