Underground services locating

Underground Service Locating

Professional underground service locating and utility surveying across Western Australia, covering drainage, sewer, water, power and communications to support safe excavation, accurate as-builts and effective clash avoidance.

Dial Before You Dig Safety

Reduce strikes and unplanned outages

3D As‑Built Outputs

GIS and CAD‑ready utility records

Multi‑Tech Detection

GPR, EM & survey integration

End‑to‑End Support

From mark‑out to final documentation

Make Every Excavation Safer with Proven Underground Service Locating

Reliable utility locating, subsurface detection and survey documentation to reduce strikes, support design coordination and keep construction progressing safely across WA.

Utility Detection & Mark‑out

Locate underground utilities including drainage, sewer, water, power and communications using GPR and electromagnetic locating for safer excavation, reduced strikes and improved pre-excavation planning.

  • Reduce strikes and safety incidents
  • Pre‑excavation planning
  • Regulatory and client compliance

Survey & As‑Built Capture

Survey and capture verified underground service positions, depths and alignments with 3D accuracy, delivering GIS and CAD-ready as-built records for maintenance, design and asset management.

  • 3D survey capture
  • Attribute recording
  • GIS ready outputs

Design Coordination

Integrate located underground services into design models to prevent clashes, optimise construction staging and improve coordination between civil, electrical and drainage teams.

  • Clash avoidance
  • Safer construction
  • Optimized staging

Safety & Compliance

Support safer excavation and onsite decision-making with accurate mark-outs, verified underground records and clear risk-zone communication aligned with Dial Before You Dig and client safety requirements.

  • Reduce unplanned outages and service strikes
  • Support Dial Before You Dig requirements
  • Clear communication of risk zones on site

GIS & Long‑Term Records

Deliver GIS and CAD-ready utility datasets with consistent attribution, 3D utility models and mapping for long-term asset management and integration into design platforms.

  • 3D utility models and mapping
  • Consistent attribution for all located services
  • Data ready for GIS and design platforms

End‑to‑End Project Support

Complete lifecycle support from early utility investigations through to final underground as-builts, ensuring survey data integrates seamlessly with design workflows and project handover processes.

  • Early‑stage planning and feasibility support
  • Survey integration into design workflows
  • Final as‑built documentation and handover
Utility mark‑out

Utility Detection & Mark‑out

GPR and electromagnetic locating to identify drainage, sewer, water, power and communications prior to excavation for safer, compliant and efficient work planning.

As‑built capture

Survey & As‑Built Capture

3D survey of verified underground utilities including depths, alignments and attributes, delivering accurate records for long-term reference and asset management.

Design coordination

Design Coordination & Clash Avoidance

Integration of located underground services into 2D and 3D design models to prevent clashes, optimise sequencing and reduce rework across civil and infrastructure projects.

FAQs

Common questions about Underground Service Locating

Answers to the questions we hear most from WA project teams.

What locating techniques do you use?

We combine GPR, electromagnetic locating, sondes, potholing and survey pick-up to verify underground services before excavation proceeds.

Do you capture depth, invert and attribute information?

Yes. Verified services are surveyed in 3D with depth, invert levels and feature codes so designers and constructors know exactly what sits below ground.

How quickly can you deliver mark-outs or as-built records?

Same-day mark-outs are available for urgent works, while full GIS/CAD-ready as-builts typically arrive within 3–5 business days depending on scope.

Underground Service Locating | Noble Surveys