NDTScan provides advanced non-destructive testing (NDT) solutions tailored for underwater surveying and inspection rovs. Our services ensure accurate, compliant, and efficient diagnostics across all sectors, from aerospace to infrastructure. With cutting-edge equipment and over a decade of experience, we deliver certified inspections that minimise downtime and maximise safety. Trust NDTScan for reliable, data-driven Underwater Surveying and Inspection ROVs reporting that enhances your decision-making and operational excellence.
NDTScan deploys industry-leading remotely operated vehicles (ROVs) and underwater inspection technologies to assess submerged structures, marine assets, and offshore installations without diver intervention. Our underwater scanning equipment evolves continually, incorporating the latest in sonar imaging, high-definition video capture, depth-rated propulsion, and corrosion detection systems.
We invest heavily in upgrading our underwater fleet, ensuring safe, accurate, and efficient surveys in ports, harbours, reservoirs, offshore facilities, and inland waterways. As new ROV designs, sensor payloads, and tether management systems improve, we integrate them rapidly to maintain operational superiority and compliance.
At NDTScan, our underwater technologies provide a critical advantage for asset owners — delivering detailed, verifiable data in environments where safety, access, and clarity are major challenges.
Advances in Underwater Surveying and Inspection ROVs Equipment
Submerged infrastructure faces accelerating risks from corrosion, impact, erosion, and marine growth. Our equipment strategy adapts continuously to meet these inspection challenges with the latest sonar, video, and acoustic analysis innovations.
NDTScan’s underwater solutions leverage compact, depth-rated ROVs with modular payloads suited to diverse inspection tasks across civil, energy, and maritime sectors.
Our Specialist Underwater Survey Equipment
Every submerged structure demands a tailored inspection approach. We select ROVs and sensors based on depth, current conditions, asset type, and defect detection goals.
Our underwater platform includes:
- High-Definition Video ROVs: Visual inspection and defect documentation in real time.
- Multi-Beam and Side-Scan Sonar Systems: 3D mapping and anomaly detection even in low-visibility conditions.
- Depth-Rated Propulsion Systems: Operation in challenging offshore and inland environments.
- Corrosion Potential Sensors: In-situ steel corrosion risk assessment underwater.
- Laser Scaling Devices: Precise size measurement of underwater defects and features.
Why Our Underwater Surveying and Inspection ROVs Deliver Safer, Better Results
By leading on underwater equipment innovation, NDTScan helps asset owners detect defects earlier, manage risk better, and extend the life of critical submerged infrastructure — all while improving operational safety standards.
Unmatched Capability in Underwater Surveying and Inspection ROVs
Underwater Surveying and Inspection ROVs are transforming how critical submerged infrastructure is assessed and maintained. At NDTScan, we deploy a fleet of advanced, compact, and depth-rated remotely operated vehicles (ROVs) to carry out high-resolution inspections without placing personnel at risk.
Whether it’s a jetty piling in a busy port, a water intake in a hydroelectric dam, or a subsea cable anchoring an offshore wind array, our ROV systems deliver rapid, detailed, and verifiable insights — even in high-current, low-visibility, or confined underwater environments.
Gone are the days of relying solely on divers for visual inspections. With our modern ROV capabilities, we can access hazardous or difficult-to-reach areas, gather sensor-driven intelligence, and produce condition reports that stand up to engineering review and regulatory scrutiny.
Why Underwater Surveying and Inspection ROVs Are Essential
Submerged assets are exposed to a unique set of deterioration factors — galvanic corrosion, marine growth, impact from debris, sediment scouring, and biological degradation. Traditional inspection methods, particularly diver-led visual checks, can miss subtle signs of structural distress or material thinning.
Our Underwater Surveying and Inspection ROVs are equipped to go beyond surface visuals. With sonar imaging, corrosion sensors, and laser measurement payloads, we can quantify degradation and detect early-stage issues before they escalate into structural failures.
Key benefits of our approach include:
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No need for confined space or diver access
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Minimal disruption to ongoing marine operations
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Full data capture for post-analysis and lifecycle planning
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Improved repeatability for condition benchmarking
Real-World Applications of ROV-Based Underwater Surveys
1. Port and Harbour Infrastructure
Our Underwater Surveying and Inspection ROVs teams are routinely deployed to inspect quay walls, jetty supports, fenders, mooring structures, and submerged bollards. These assets are often subject to impact loading, corrosion under tidal variation, and abrasion from marine traffic.
By using sonar and high-definition video, we create 3D profiles of structural elements, detect concrete spalling or steel exposure, and identify areas where maintenance is due — all without interrupting port operations.
2. Reservoirs and Water Control Structures
Dams, locks, sluice gates, and water intakes require regular inspection to comply with environmental and safety regulations. Our underwater platforms can operate in low-visibility water, scanning submerged concrete for cracks, joint degradation, or biofouling that could impact flow control or water quality.
We also support turbidity measurement and silt level monitoring to inform dredging or water management plans.
3. Offshore Energy Installations
From platform legs to riser bases and wind turbine monopiles, our systems inspect subsea energy infrastructure for signs of fatigue, impact, or seabed scour. Underwater Surveying and Inspection ROVs in this environment must cope with high currents, salt exposure, and demanding visibility conditions — and our fleet is designed precisely for that.
Sonar systems allow us to “see” through murk or darkness, while laser scaling tools enable us to measure pitting depth, weld misalignment, or bracket deflection with precision.
4. Bridges and Transport Infrastructure
We carry out routine and reactive inspections on bridge piers, abutments, and submerged foundation structures. Where diver access is restricted or unsafe due to river velocity or debris, our Underwater Surveying and Inspection ROVs provide a safe alternative.
We deliver cross-section analysis of scouring effects, wall thickness checks for steel components, and underwater imagery to support structural health monitoring.
5. Inland Waterways and Industrial Process Water Systems
From culverts to cooling water systems, we survey submerged components critical to plant operations and public infrastructure. This includes pump intake screens, underwater valves, and pipe outlets — all subject to corrosion, debris build-up, and fatigue cracking.
Our Advanced ROV Equipment and Capabilities
We tailor every inspection using the right tool for the job, factoring in water depth, clarity, current strength, and inspection objectives. Our modular Underwater Surveying and Inspection ROVs can include:
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HD Video Cameras
For close-up inspection of welds, damage zones, or suspected marine growth, our high-definition feeds provide engineers with the visual clarity needed to make decisions with confidence. -
Multibeam and Side-Scan Sonar
Used when visibility drops below inspection threshold. Sonar systems produce real-time imaging of asset profiles, seabed topography, and large-area condition mapping. -
Depth-Rated Propulsion Units
Allow stable operation in deep or high-current environments, including offshore zones and flooded industrial assets. -
Corrosion Sensors and CP Measurement Tools
Assess electrochemical potential and the integrity of protective coatings or sacrificial anodes — helping track long-term degradation in metallic assets. -
Laser Scaling Modules
Quantify the exact dimensions of defects, cracks, or marine features — especially important for engineering review and asset condition rating. -
Real-Time Surface Control and Data Logging
Our surface control units allow engineers to make live decisions, capture images, and annotate anomalies as the ROV navigates underwater structures.
Deliverables That Drive Action
Post-inspection, our teams provide comprehensive reports featuring:
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Annotated images and sonar scans
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Cross-sectional profiles and defect maps
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Corrosion and coating condition summaries
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3D reconstruction models (where sonar or LiDAR is used)
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Positional data and GNSS-referenced locations (if surface correlation is needed)
These deliverables are tailored for direct use in asset registers, maintenance logs, and regulatory compliance documents.
Health, Safety, and Operational Efficiency
By removing the need for diver entry, Underwater Surveying and Inspection ROVs significantly reduce health and safety risks — especially in hazardous or contaminated environments. We eliminate working-in-water protocols, reduce insurance and permit requirements, and accelerate mobilisation time.
In many cases, Underwater Surveying and Inspection ROVs inspections can be carried out with minimal or no interruption to operations — avoiding costly shutdowns or disruption to marine traffic.
Investing in the Future of Underwater Inspection
We don’t stand still. Our commitment to maintaining the UK’s most capable fleet of Underwater Surveying and Inspection ROVs is ongoing. As new sensor types, AI-powered image recognition, or autonomous underwater vehicles (AUVs) become viable, we assess and integrate them rapidly.
This ensures our clients are always ahead of the curve — with access to the most reliable, efficient, and safe inspection solutions available.
