About HD Underground Service Locating and NDD Excavation

HD Underground Service Locating and NDD Excavation provides professional non-destructive digging, hydro excavation, and underground utility services across Newcastle and New South Wales. Backed by decades of civil, plumbing, and site management experience, we help contractors complete excavation works safely, efficiently, and with minimal disruption to critical underground infrastructure.

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Why Tier 1 contractors put their trust in us

HD Underground Service Locating and NDD Excavation has been the go-to name for non-destructive excavation, precise utility locating, and high-pressure drain cleaning across New South Wales. Our fully insured team delivers reliable, safe, and compliant workmanship 24/7, with the kind of work ethic that keeps projects moving forward.

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Need a site cleared safely and efficiently?

 Partner with a team that knows how to keep projects moving. Contact HD Underground Service Locating to get your works underway.

(02) 4601 5139

Frequently asked questions

  • Why is hydro excavation safer than mechanical digging?

    Hydro excavation uses pressurised water and high-velocity vacuum extraction, eliminating the risk of striking and damaging underground utilities. It is the gold-standard, compliant method under SafeWork NSW for digging around live assets.
  • Do I still need cable locating if I have BYDA plans?

    Absolutely. BYDA plans are a great guide, but assets are frequently unrecorded or displaced over time. Our on-site locating using advanced EM and GPR technology provides the verified, real-time data needed for zero-incident excavation.
  • What happens to the waste material from hydro excavation or drain cleaning?

    We leave a clean site behind. All slurry and wastewater are safely contained in sealed tanks and transferred to EPA-approved facilities, adhering strictly to environmental and waste management regulations.
  • Are your operators qualified for this type of work?

    Without a doubt. Our team consists of licensed, insured, and vetted operators with over 35 years of background in major civil and infrastructure projects, ensuring full compliance with all Australian Standards.
  • Do you offer emergency or after-hours services?

    Yes. Infrastructure issues don’t wait for business hours. We provide 24/7 rapid response across NSW for emergencies, planned maintenance shutdowns, and urgent project deadlines.
  • Can you handle complex or multi-utility sites with mixed infrastructure?

    Yes, that’s where we thrive. With over 35 years of experience across major civil, industrial, and pipeline networks, we regularly work on high-stakes sites with overlapping electrical, gas, water, sewer, and communications assets. By combining hydro excavation, underground cable locating, and drain jetting, we can identify, expose, and maintain these assets without a second of service disruption. Every project is backed by comprehensive reporting and compliance documentation.
  • Need a site cleared safely and efficiently?

    Partner with a team that knows how to keep projects moving. Contact HD Underground Service Locating and NDD Excavation today to get your works underway with precision and confidence.

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Reach out to our friendly team

Local subcontractor or managing a major utility network rollout—either way, we’ve got the gear, the grit, and the experience to keep things moving without the headaches. Fill out the form or give us a call and we’ll get your quote locked in for you.


(02) 4601 5139

We go where the work is

HD Underground Service Locating and NDD Excavation is proudly based in Newcastle, but our fleet is regularly on the move right across New South Wales. If your specific site sits outside our usual stomping grounds, we’re always ready to map out a solution for the right project.