Utilising high pressure water jetting and vacuum extraction of soil in hydro excavation proves to be the safest form of excavation reducing significantly the potential harm to underground assets such as electrical cables and gas mains.

Vacuum Loading

GMA’s vacuum loading units offer the fast and effective removal of waste products by the vacuum loader can handle a whole range of wet and dry objects.

GMA is able to provide EPA licenced vacuum loading and transportation services for a variety of waste and unwanted products including:

  • Industrial / manufacturing waste removal
  • Programmed plants shutdowns
  • Infrastructure projects including spoil/waste removal
  • Tank and vessel cleaning
  • Highway maintenance including drains & culverts
  • Industrial / mining ponds & dams

Our hydro vacuum loading and vacuum waste removal services are used specifically on industrial and manufacturing projects to safely and efficiently clean and remove waste from:

  • Sump Pits
  • Backwater Pits
  • Storage Pits / Drains
  • Holding Ponds
  • Storage Tanks

Combination Cleaning

Combination Cleaning and Vacuuming is a method of both cleaning sewers and drains with high pressure water and then rather than let the residue flush down the system, the debris is sucked and subjected to the combination units powerful vacuum unit and the debris subject to recycling to minimise the waste and the residue transported to EPA approved sites.

Hydro excavation

Hydro excavation is the key method of digging with water. It is a safe, non-destructive digging technology used to service utilities, local authorities, commercial, and industrial facilities. It is an imperative safest method of excavation when the ground is filled with pipes, ducts, electrical cables, fibre-optics, and telecommunication lines, all competing for space.

How Hydro Excavation Works

Hydro excavation equipment combines high-pressure water an air vacuum. This system cuts through the soils and breaks it up. The vacuum then lifts the slurry from the excavation area. The debris is transferred to a debris tank.

Hydro excavation equipment combines high-pressure water with air vacuum. This system cuts through the soils and breaks it up. The vacuum then lifts the slurry from the excavation area. The debris is transferred to a debris tank.

Underground facilities and subsurface utilities are almost always needed for construction. Excavation to lay these utilities is not an easy job and has a lot of risks. The existence of hydro excavation has considerably lessened these risks and it can now be used for several excavation applications.


Hydro excavation brings a number of benefits to the industrial excavation world. It is now the most preferred method of digging because of its efficient and accurate results.

The primary benefit of hydro excavation is that it provides for better damage and safety control when compared with mechanical methods. Since it is accurate, it limits accidents and injuries for laborers as well as other people. It also does a better job of digging.

Using hydro excavation avoids damage to underground pipes, lines and cables. This in turn eliminates the high expenses needed for repairs and restoration. Needing to do fewer repairs means less time to get the job done too. Interrupted utilities bring inconveniences and high costs. This process of excavation is able to minimize damages.

Our hydro excavation equipment uses pressurised water and a powerful vacuum to safely and cleanly expose any ground condition. This hydro excavation system eliminates the risk of damaging existing underground infrastructure and minimises the impact on the surrounding environment.

Hydro excavation is faster and safer than hand digging and mechanical digging, with a much smaller hole size which results in reduced reinstatement time and costs.

Common uses for hydro excavation include:

  • Utilities – locate and repair
  • Light and telephone pole base installation
  • Entry and exit pits for no-dig technology (e.g. thrusting, directional drilling)
  • Facilities maintenance including drilling mud removal
  • Internal excavation of hard to reach areas, including pump stations
  • Industrial clean up such as grit and ballast removal