Hydro Vacuum Excavation | Non-Destructive Digging | All Underground | Safety Colors

Non-Destructive Digging

Hydro Vacuum Excavation
Precision. Safety. Efficiency.

All Underground delivers advanced hydro vacuum excavation – a non-invasive, cost-effective solution to expose underground utilities, trench, pothole, and clean debris without damaging critical assets.

Request a Quote →

All Underground HydroVac Technology

What is Hydro Vacuum Excavation?

Hydro vacuum excavation uses high-pressure water to break up and cut through soil, gravel, and compacted ground, while an industrial-strength vacuum system simultaneously removes the debris. The result is a precise, clean excavation hole with zero damage to underground utilities. At All Underground, we specialise in this non-destructive digging (NDD) method across Brisbane, Gold Coast, and South East Queensland — ensuring the safety of your buried assets and personnel.

Unlike traditional mechanical methods (backhoes, bobcats, or bulldozers), our hydro vac trucks minimise the risk of hitting power cables, fibre optics, gas lines, or water mains. It's the modern standard for potholing, slot trenching, and subsurface exposure.

How Hydro Vacuum Excavation Works

High-Pressure Water Cutting

Pressurised water (up to 3,000 PSI) is directed through a wand to break and liquefy soil, clay, or rocky substrates.

Simultaneous Debris Vacuuming

A high-flow vacuum system (up to 16" diameter) removes the slurry and debris immediately into a debris tank, leaving a clean hole.

Asset Exposure & Safe Digging

Underground services are exposed without mechanical force, eliminating damage risk to existing infrastructure.

Clean & Restoration Ready

No leftover spoils or messy mounds — our vac system keeps the worksite clean, safe, and compliant.

Key Benefits of Hydro Vacuum Excavation

Ultimate Safety

Eliminates accidental utility strikes & reduces onsite personnel risk associated with heavy machinery.

Damage Prevention

Protects fibre optics, power, gas & water lines – avoid costly repairs and project delays.

Weather-Resilient

No weather limitations – hydro excavation works in rain, heat, or humidity without downtime.

Precision Digging

Ideal for potholing, slot trenching, pole installation, and exposing utilities with pinpoint accuracy.

Environmentally Considerate

Minimal ground disturbance, reduced carbon footprint compared to traditional digging.

Cost-Effective

Less restoration, zero asset damage, reduced labour – overall lower project costs.

Applications & Versatility

From civil infrastructure to residential projects, our hydro vac fleet handles it all. Typical applications include:

Potholing & Utility Exposure Slot Trenching Sign & Power Pole Installation Culvert & Drain Clean-Out Underground Line Exposing Trenching Across Existing Services Material & Sludge Removal Pit & Conduit Cleaning Digging Under Existing Structures

Hydro vac truck fleet at All Underground depot

Operator performing hydro vacuum excavation

Vacuum truck operating at service location

Frequently Asked Questions

Absolutely. Because hydro excavation uses only pressurised water and vacuum, there's no mechanical force that can damage sensitive pipes, fibre optic cables, or electrical conduits. It's the safest method to expose buried assets.

Depth depends on soil type, but hydro vac can typically excavate down to 3–6 metres in optimal conditions. For deeper requirements, we adapt our approach based on geotechnical factors.

No – unlike traditional excavation, hydro vac is efficient in all conditions, including wet, frozen, or saturated ground. Our trucks operate year-round without weather-related downtime.

Yes, from clay, sand and gravel to compacted fill. High-pressure water breaks up most soil types efficiently, and our adjustable pressure ensures optimal results without damaging adjacent utilities.

Traditional methods use metal teeth and blades that risk cutting through pipes and cables. Hydro excavation is non-destructive – it cuts soil only and vacuums the debris, leaving underground infrastructure unharmed.

Yes, it significantly reduces ground disturbance, eliminates the need for backfill spoils, and lowers the carbon footprint compared to heavy mechanical excavation. It also prevents contamination from utility strikes.

By removing heavy machinery from sensitive zones, hydro vac reduces the risk of rollovers, cave-ins, and struck-by incidents. Workers can safely expose utilities from a distance, drastically lowering injury potential.

Definitely. Hydro vac trucks come in various sizes, and All Underground's fleet includes compact units perfect for urban environments, indoor sites, and congested utility corridors where traditional equipment can't fit.

Potholing for utility location, slot trenching for pipeline installation, pole and sign setting, culvert cleaning, debris removal, daylighting existing lines, and any excavation near critical infrastructure like fibre optics or high-voltage cables.

Yes, dramatically. Studies show that hydro excavation reduces utility strikes by over 90% compared to mechanical digging. It's the industry gold standard for damage prevention in sensitive underground environments.

GET IN TOUCH

Request Hydro Vacuum Excavation
or Site Consultation

Fill in the form and our non-destructive digging specialists will contact you within 24 hours. Whether you need potholing, slot trenching, or utility exposure — we are ready to assist with safe, precise hydro excavation.

Free consultation — discuss your project needs
Fast response — within 1 business day
Certified hydro vac operators & advanced fleet
Transparent quotes with no hidden fees

"All Underground's hydro excavation team safely exposed our fibre optic network without a single strike — saved us weeks of delays."

— Infrastructure Manager

Send an enquiry

Fill out the details and our hydro vac specialists will reply promptly

Hydro Vacuum ExcavationPrecision. Safety. Efficiency.