Plastering training courses - Artexing courses - Drylining courses - Tiling and more. Welcome to the Building Skills Centre for City & Guilds - CAA. Now is the best time to invest in your future and retrain to gain a qualification. By doing this you will put yourself in the best position to find work quickly once the industry starts to pick up as anticipated. We pride ourselves in offering inexpensive practical courses including Plastering courses, Tiling course, Drylining courses, Metal Stud Partitioning courses and Artexing courses. We believe that you are in the best hands to learn a new skill or improve on skills you already have