Hydro / Vacuum Excavation / Non-Destructive Digging (NDD) / Non Destructive Excavation (NDE) / Water Lancing

Hydro / Vacuum Excavation – or Non-Destructive Digging (NDD) is a clean, precise and non-invasive excavator technology that provide an alternative safe digging method to mechanical and manual excavation techniques.

Our experienced operators use high-pressure water to loosen the ground and utilises a vacuum at the same time to remove the spoil/dirt into a tank for later removal from the site.

This modern excavation technique provides a range of safety and operational benefits such as:

  • Quickly and efficiently locate and expose existing buried pipe, cable and other utility lines without a safety risk and the risk of damage to these services or tree roots, eliminating the costs and delays of damages.
  • The excavation can be completed with precision thereby minimising the size of the excavation and the volume of material removed. This in turn reduces the environmental impact and reinstatement costs.
  • Keyhole excavation utilising the excavator’s telescopic reach and flexibility enables effective excavation in many areas where mechanical excavation is difficult and cost prohibitive.
  • Health and safety risks associated with labour intensive manual excavation is negated.
  • Suction excavation is the ideal solution for sucking material over long distances, vertically, horizontally and in sensitive and difficult to reach areas.
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Applications

Non-Destructive Digging (NDD) techniques have varied applications over a wide range of industries and sectors including, amongst others:

Utilities: Gas, Electrical & Water

  • Network pipe replacement and upgrades
  • Leakages and emergency repair works
  • Safely and efficiently exposing underground services within power stations and substations, without the need for isolation
  • Safe and efficient removal of contaminated materials in substations
  • Water meter replacement/installation
  • Cleaning of holding tanks and the removal of sludge and silt
  • Material removal from filter beds
  • Utility pit clearing

Transport: Rail & Road

  • Sleeper replacement and upgrades
  • Tunnel clearing
  • Clearing of drainage systems
  • Pavement cleaning and chewing gum removal
  • Concrete and footpath cleaning
  • Road cleaning of harsh environments, where traditional road sweepers are ineffective
  • Traffic signal installation

Construction: Commercial & Domestic

  • Ideal solution for excavation or site preparation in sensitive/restricted areas and allows businesses to continue production whilst excavation work is carried out
  • Work areas can be cleaned quickly and effectively without the fumes and dust generated by mechanical excavators
  • Foundations and footings can be excavated much quicker compared with manual excavation, while keeping the site clear from debris
  • Sign installation and landscaping

Cleaning: Pits, Drains, Tanks, Gutters & Buildings

  • Expert vacuum cleaning of roof gutters and downpipes – fast and efficient with no waste left on site
  • Cut through blockages and keep drains flowing
  • Effectively remove debris, blockages and build up that restrict flow within conduits, drains and pipes
  • Specialised cleaning of pollutant traps, sewer pits, stormwater drains, wet wells, pump stations, etc.
  • Building and factory cleaning including equipment cleaning, graffiti removal and spill removal

Tree Roots

  • Tree roots can be exposed safely and without damage to the tree or surrounding structures or utilities
  • Well suited for trees covered under a preservation order or valuable trees

Refineries & Chemical Plants

  • Non-Destructive Excavation is the safest method of excavating in these super-sensitive environments

Environmental Disasters

  • Fast clear up after environmental and natural disasters with minimal impact to the environment