Profile: Castle and Pryor Ltd. specializes in diamond drilling, cutting, and controlled demolition. Diamond drilling is a quiet, non-percussive way of forming holes and openings. We use two main types of diamond drilling; wet drilling and dry drilling. Both techniques provide precise holes through all types of base materials such as mass concrete, reinforced concrete, brick masonry, and block work. We also provide stitch drilling which is a method of forming holes where the size or shape are abnormal. This method entails a series of holes to be drilled next to each other to form the opening. Concrete floor diamond cutting is commonly used for cutting flat surfaces such as motorways, bridges, pavements, and floor slabs. Diamond wire cutting or sawing is a flexible tool for masonry and concrete cutting. It allows almost any large concrete or masonry structure to be cut where other methods are not feasible. It is an ideal tool for cutting reinforced concrete, such as bridge sections, jetties, and columns or beams.