Knights Group carry out Hydrodemolition (also known as hydroblasting, or ultra high pressure water jetting).  Hydrodemolition is a concrete removal technique which utilises ultra high-pressure water at pressures up to 40,000 psi to remove deteriorated and sound concrete to expose reinforcement bars for repairs and or replacement. Hydrodemolition is ideal for the removal of concrete witout damage or impact to the reinforcement bars or vibration of a structure. This process provides an excellent bonding surface for repair material.

Ultra High Pressure Water Jetting is also suitable for the removal of coatings as opposed to abrasive or shot blasting prior to new coating applications and for the safe removal of lead based coatings.