"Your assistance in the production of the Method Statement and Risk Assessment was much appreciated. Your operatives worked well in a difficult environment and have left a nice clean and tidy opening in the weir as requested."

Andy Burton, Gleeson Construction Services


Diamond drilling is a quiet, non-percussive way of forming holes and openings. The result is free from bursting and requires little or no reinstatement work.

Water and dust control attachments can be used to reduce spoil where a clean environment is being worked in. Diamond drilling provides precise holes through all types of base materials such as mass concrete, reinforced concrete, brick masonry, and block work. Our drilling size range is from 10 mm diameter for small anchor bolts and dowel bars to 550 mm diameter (single holes) for installing large diameter pipes.

Stitch Drilling

Stitch drilling is a commonly used method of forming holes where the size or shape is abnormal. This method entails a series of holes to be drilled next to each other to form the opening. This method can also be used for holes over 1.0m diameter. Drill motors vary in size and can be attached to various types of rigs, all of which can be powered by various means: air, electric, petrol, or diesel. A common drill rig set-up would be a static column with an electric motor attached, mainly used for drilling cores up to 250mm diameter. Thereafter a hydraulic motor would be used as this provides the correct peripheral speed and torch, which is required for the larger diameter cores. Different attachments range from trailer mounted rigs, hand-held drill motors, twin column assemblies, and automated rigs, all of which are used and specified to suit all drilling environments. Having the right drill rig and set-up can be the difference between a successful and non-successful operation being carried out.

Floor chasing

Floor chasing is often done using electric or petrol driven floor saws that are more compatible with this type of application. The extra power that the saws generate makes the cutting of larger volumes of work easier, especially when dealing with hard material like concrete. This section of motorway has been cut to a precise depth. Once cut, the material in-between can be removed using percussive or less disruptive methods and, as in this case, starter bars can be inserted to add additional strength.