Skip to content
Service

Hydro Excavation & Non-Destructive Digging

Pressurised water and industrial vacuum to expose or remove soil around live services.

Hydro excavation uses pressurised water and high-capacity industrial vacuum equipment to break up and remove soil while exposing underground infrastructure. It is a controlled, non-destructive method of digging that reduces the risk of striking live services compared with mechanical excavation.

What is hydro excavation?

Hydro excavation is a non-mechanical digging method that uses pressurised water to break up soil and an industrial vacuum to lift the resulting slurry into a tank. Because nothing strikes the ground, it is used as a form of non-destructive digging (NDD) to expose and prove buried services.

Dynamic vacuum excavation truck cutting a precision service trench on a live road corridor
Common applications

Where this service is used

  • Potholing and service proving
  • Precision trenching
  • Pole-hole and pit excavation
  • Excavation around live services
  • Sign and post installation
  • Foundation and footing exposure
  • Pit and chamber cleaning
  • Restricted-access excavation
  • Utility maintenance and repair support
  • Emergency excavation
  • Debris and slurry removal
Key capabilities

What Dynamic brings

  • Truck-mounted vacuum excavation units
  • 10x4 high-capacity vacuum trucks for larger volumes
  • Long hose runs for restricted or offset access
  • Cold and hot water capability for a range of ground conditions
  • Spoil containment and offsite disposal support
Why Dynamic

Benefits of using Dynamic

Protects buried assets

Water and vacuum expose services without the blunt force of a bucket, lowering the chance of a strike.

Access where machines cannot reach

Long vacuum hoses let crews work in tight, offset or restricted locations that block conventional plant.

Clean, precise excavations

Neat verticals and controlled spoil removal suit potholing, service proving and works around existing infrastructure.

Backed by a large fleet

Multiple units across QLD and NSW support both single potholes and sustained programmes of work.

Relevant equipment

Industries served

Safety considerations

  • Digging method that reduces the risk of damaging buried assets compared with mechanical excavation
  • Operators experienced in working near live electrical, gas, water and communications services
  • Works integrate with Before You Dig Australia plans and site utility information
  • Spoil handling and site reinstatement managed to site requirements
How we manage safety and compliance
Regional availability

Where we deliver hydro excavation

Hydro Excavation is delivered by our regional teams along the Queensland and New South Wales coast. Choose a region for its serviced areas, local coverage notes and the way work is scheduled there.

FAQs

Frequently asked questions

What is hydro excavation?+

Hydro excavation is a digging method that uses pressurised water to loosen soil and an industrial vacuum to remove it, exposing or excavating around underground services with a lower risk of damage than mechanical digging.

Is hydro excavation the same as non-destructive digging?+

Hydro excavation is one of the most common forms of non-destructive digging (NDD). The terms are often used together because both describe methods that expose services without direct mechanical contact.

Can you work close to live services?+

Yes. Hydro excavation is regularly used to expose and prove services near live electrical, gas, water and communications assets. Works are planned using available utility plans and site information.

What happens to the spoil?+

Wet spoil is collected in the vacuum unit and can be transported for offsite disposal. Disposal arrangements are confirmed as part of your quote.

What information do you need to quote hydro excavation?+

The site address, what has to be exposed or excavated, how many locations, the expected depth, which services are known or suspected to be present, and the access available for a truck and hose. Traffic management, permit and after-hours requirements are worth raising early, because they change how the work is scoped.

Can Dynamic mobilise across Queensland and New South Wales?+

Yes. Units and crews are based in regions along the Queensland and New South Wales coast rather than run out of a single depot, which is what makes travel time and short-notice attendance workable outside the capital cities. Availability in a given region is confirmed when you enquire.

Project evidence

Hydro Excavation on live projects

Case studies where hydro excavation formed part of the scope, including the site constraints and how the work was sequenced.

View all case studies →
Request a quote

Request a Hydro Excavation quote

Tell us about your project and our team will respond. For urgent works, call 1300 822 878.

Step 1 of 6: Service

  1. 1Service
  2. 2Location
  3. 3Project
  4. 4Contact
  5. 5Files
  6. 6Review

Step 1 of 6

What service do you need?

Call Now Request a Quote