Map
Precision Underground Surveying
We utilise multiple advanced technologies, including LiDAR, laser scanning, and Ground Penetrating Radar (GPR), to remotely locate and precisely map critical infrastructure, such as pipes, tunnels, and aqueducts. This eliminates the need for manned entry, offering a safer and more efficient process.
By integrating LiDAR, photogrammetry, sonar logging, and Inertial Motion Sensing technology (IMS), we can accurately map and measure underground assets—whether dry, partially surcharged, surcharged, pressurised, or filled with flowing or static water. Our methods ensure precision over any distance and diameter with repeatable accuracy.
Our services are PAS128 compliant, providing clients with survey-grade, measurable modeling details. These models allow for dimension and size extrapolation, which can be imported into formats like 3D Point Cloud for comprehensive analysis and integration into larger systems.
FAQs
Frequently Asked Question
What problems does your mapping service solve?
It pinpoints the true location and geometry of underground assets so engineers can plan interventions, validate as-builts and reduce excavation risk.
Which environments can you map?
Dry, partially surcharged, fully surcharged, pressurised and water-filled assets, including tunnels, aqueducts and pipelines.
Which technologies do you combine?
LiDAR and laser scanning with photogrammetry, sonar logging and Inertial Motion Sensing (IMS). We add GPR where construction detail or cover needs confirming.
Is the work PAS 128 compliant?
Yes — our workflows align to PAS 128 and produce survey-grade, measurable outputs suitable for design and assurance.
How accurate are the results?
We design control, calibration and repeatable runs to achieve survey-grade accuracy; you’ll receive stated tolerances and QA records with the deliverables.
What formats do you deliver?
3D point clouds (LAS/LAZ), meshes, BIM/IFC, DWG/DXF and GIS-ready files, plus drawings and model snapshots for quick review.
Can you map long distances without GNSS?
Yes. IMS provides a drift-controlled trajectory, while LiDAR/sonar features allow correction, giving repeatable alignment over long, GNSS-denied runs.
Do you need manned entry?
Normally no — we deploy robotic platforms to eliminate routine manned entry wherever possible.
Can we view progress live and request extra coverage?
Yes — remote live-view lets stakeholders monitor the run and direct additional passes in real time.
Where do you operate and how fast can you mobilise?
We’re based in Harlow, Essex and support clients across the UK and internationally. Mobilisation depends on scope and access — share your brief and we’ll confirm dates.