ROV and Underwater Drone Inspection Services in Ireland
We provide professional ROV (remotely operated vehicle) inspection services for submerged infrastructure, water storage assets, and marine structures across Ireland. Our underwater drones operate at depths of up to 200 metres, capturing high-resolution video and imagery without requiring commercial divers, draining, or operational downtime. Combined with our aerial drone survey capability, we offer a complete above-water and below-water inspection service from a single provider.
We operate Deeptrekker industrial-grade ROV systems equipped with 4K cameras, adjustable LED lighting, and imaging sonar for zero-visibility environments. All inspections are carried out from our base in County Meath, with nationwide coverage.
What Is ROV Inspection?
ROV inspection uses a tethered, remotely operated submersible vehicle to examine underwater structures. The operator controls the ROV from the surface via a portable control station, viewing a live high-definition video feed in real time. The ROV captures continuous video footage, still photographs, depth readings, and temperature data throughout the inspection. All footage is recorded and included in the formal inspection report.
For decades, underwater inspections required commercial dive teams, confined-space entry, or draining the asset being inspected. ROV technology eliminates all three. The vehicle accesses spaces too dangerous, too deep, or too contaminated for human entry, and it does so faster and at a fraction of the cost.
Applications
Our ROV inspection services cover five core application areas. Each requires different operational planning, equipment configuration, and reporting standards.
Water Storage and Fire Suppression Tanks
Water storage tanks and fire suppression reservoirs require periodic internal inspection to satisfy insurance requirements and Irish Water regulations. The traditional approach of draining the tank, manually entering, inspecting, cleaning, and refilling can take weeks and forces fire protection systems offline for the duration. For facilities that depend on continuous fire suppression coverage, this is often not feasible.
Our ROV inspects the tank while it remains full and operational. There is no draining, no downtime, and no interruption to fire protection or water supply. The ROV examines internal walls, floor plates, baffles, inlet and outlet pipes, and roof structures, recording high-resolution video of cracks, corrosion, coating failure, sediment accumulation, and biological growth. We deliver a comprehensive digital inspection report that includes annotated imagery, a condition assessment, and recommendations. Reports are formatted to meet insurance compliance requirements.
Bridges and Subsea Foundations
Bridge piers, abutments, and submerged foundations are subject to scour, concrete spalling, reinforcement corrosion, and structural cracking. These defects develop below the waterline, where they are invisible to surface-level inspections. Our ROV provides close-range visual assessment of submerged bridge elements, including pile caps, cofferdams, and scour protection. We work with structural engineers and local authorities to provide condition documentation suitable for engineering assessment and asset management records.
Harbours, Ports, and Marine Structures
Harbour walls, quay walls, jetties, breakwaters, and mooring infrastructure require regular underwater condition assessment. Our ROV surveys identify concrete deterioration, steel corrosion on sheet piling, displacement of armour stone, undermining of foundations, and marine growth that may obscure structural damage. We provide detailed footage for port engineers and marine consultants to assess maintenance priorities.
Dams and Reservoirs
Dam faces, sluice gates, intake towers, outlet structures, and spillway channels all require periodic underwater examination. Our ROV systematically navigates dam faces, recording wall condition, joint integrity, seepage indicators, and sediment levels. For valve and gate inspections, the ROV provides close-range visual confirmation of mechanism condition without dewatering. This is particularly valuable for older dam infrastructure, where structural concerns make confined space entry inadvisable.
Aquaculture and Fish Farms
Ireland’s aquaculture sector relies on underwater monitoring to assess net cage integrity, mooring system condition, and seabed impact. DAFM aquaculture licences increasingly require environmental monitoring of the seabed beneath and around fish farm installations. Our ROV conducts net-pen inspections to identify tears, biofouling, and predator damage. We also conduct mooring line and anchor assessments and seabed surveys to document sediment conditions, organic loading, and benthic community health beneath cage sites. We support aquaculture operators along the west coast, in Galway Bay, Donegal, Mayo, Cork, and beyond.
How We Work
- Site assessment and planning. We review the asset, access points, water conditions, depth requirements, and any site-specific hazards. For water tank inspections, we confirm the dimensions of the access hatch and the tank specifications. For marine and bridge work, we assess tidal windows, current conditions, and vessel requirements.
- ROV deployment and data capture. The ROV is deployed from the water surface or through an access hatch. The operator controls the vehicle from a portable surface station, viewing the live feed and directing the ROV through a systematic inspection pattern to ensure full coverage of the asset. All video and still imagery is recorded throughout.
- Reporting and delivery. We deliver high-resolution video footage, annotated still images, and a written condition assessment report. Reports are available via our secure online portal, electronic delivery, or physical media as required. For clients working with engineering consultants, we format data to suit technical analysis and asset management systems.
Our Equipment
We operate Deeptrekker industrial-grade ROV systems, selected for their reliability, portability, and performance in the conditions encountered during Irish inspections. Our equipment specifications include depth ratings of up to 200 metres (covering virtually all Irish freshwater and coastal requirements), 4K ultra-high-definition cameras with adjustable high-intensity LED lighting, precision thrusters with stabilisation for steady footage in current, imaging sonar for zero-visibility conditions in silted or turbid water, tethered power supply for extended mission duration with no battery limitations, and temperature, depth, and conductivity sensors. The system is fully portable and does not require a support vessel for most inland and coastal inspections. A single operator manages the ROV from the surface control station.
Why Use ROV Inspection
ROV inspection eliminates the safety risks, cost, and downtime associated with traditional diving and manual inspection methods. There is no exposure to cold water, contamination, or confined space hazards. There are no decompression requirements, standby diver teams, or medical support logistics. A single ROV operator completes work that would require a full dive team, at significantly lower cost.
For water tanks and fire suppression reservoirs, the operational benefit is transformative: assets are inspected while remaining in full service, with no draining, no production shutdowns, and no gap in fire protection coverage. For marine and infrastructure assets, the ROV accesses areas that are too deep, too confined, or too structurally compromised for safe human entry.
DSI also offers a combined inspection service that is unique in the Irish market. For assets with both above-water and below-water inspection requirements, such as bridges, harbour structures, and coastal infrastructure, we can deploy aerial drones and underwater ROVs on the same site visit. This provides a complete structural picture from a single provider, eliminating the need to coordinate separate contractors.
Frequently Asked Questions
No. This is the primary advantage of ROV technology for water tanks. We inspect the tank while it remains full and operational. There is no draining, no downtime, and no interruption to fire suppression or water supply systems. This avoids the weeks of disruption and cost associated with traditional drain-and-enter inspection methods.
Our Deeptrekker ROV systems are rated for depths of up to 200 metres. This comfortably covers all water tank, bridge, harbour, dam, and coastal inspection requirements in Ireland. Most inland and freshwater inspections are well within this range.
Costs depend on the asset type, location, depth, duration, and specific inspection requirements. We provide transparent, itemised quotes with no hidden fees. Contact us for a free, no-obligation quote tailored to your project.
Yes. ROV inspection is ideal for hazardous water environments including contaminated tanks, sewage infrastructure, industrial effluent systems, and chemically treated water. Because the vehicle is remotely operated, there is zero human exposure to the water being inspected.
Standard deliverables include high-resolution video footage of the complete inspection, annotated still photographs highlighting areas of concern, a written condition assessment report with findings and recommendations, and secure online portal access for file sharing. We format reports to meet insurance, regulatory, and engineering consultancy requirements.
Yes. We are one of the few providers in Ireland that operates both aerial drones and underwater ROVs. For assets with above-water and below-water inspection needs, such as bridges, harbour walls, and coastal structures, we deploy both systems on a single site visit. This gives your engineering team a complete structural record from one provider.