Underwater Inspections
Comprehensive hull surveys at key ports throughout the world
A key feature of understanding asset condition
Idwal is able to conduct Underwater inspections in many of the worlds ports, and through our unrivalled contacts and networks with Class-approved dive stations across the globe, we are able to deliver detailed insights into the underwater condition of a wide range of vessel-types.

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Unlock critical vessel insights
Underwater ship inspections are a critical part of understanding total asset condition. It is important when trying to establish the condition of your vessel, whether in a pre-purchase scenario, or as part of a financing transaction, or prior to dry docking, that the submerged areas of the vessel are also checked for possible damage.
An underwater ship inspection entails qualified, class-approved, trained divers going below the waterline to check the submerged areas of the ship. This exercise enables the owners, managers and financiers to detect any problems and calculate the capital demands of taking remedial action, if required.
Leaders in condition and asset integrity
Leading shipowners, banks, funds, lessors and financiers use our Underwater Inspection services, in conjunction with our Condition Inspections and Pre-Purchase Inspection services to fully understand the condition of their investments and to ensure that their collateral is maintained to an industry best-practise standard, with values preserved and risks minimised.
Many of our clients have made critical decisions based on our Underwater inspections, during the sale and purchase process.
With Idwal you can expect a quick report turnaround, supported with high resolution video of the underwater inspection, through our extensive global reach and a competitive price. Most importantly, you'll get a report delivered straight to your mailbox which you can understand easily and which you can act on.

Delivering confidence through clarity
Thanks to our standardised asset integrity rating, the Idwal Grade® we can provide a clear visualisation of the condition of your vessel that is easy to understand at a glance and we are able to accurately compare your ship to others in its class, whilst maintaining complete confidentiality.
The Idwal Grade is an industry recognised measure of asset integrity, programmatically calculated from over 500 individual data points, captured during a standardised inspection process. It is represented as a number between 1 and 100 so the vessel integrity is simple to understand, regardless of your technical or operational experience.

Why Idwal?
Idwal is the ship inspection, technology and data business. The global leader in independent sale and purchase inspections and the industry’s trusted partner for fleet condition monitoring.
Idwal’s 500-point inspection reports provide transparent and actionable insights into a vessel’s maintenance, quality and ESG compliance, contextualised by the Idwal Grade®, the industry standard for measuring asset integrity.
Idwal’s data-driven methodology ensures that reports are consistent, intuitive to read, accurate and free from bias. Trusted as the industry standard, they inspect almost half of all vessels sold each year.
Founded in 2010, Idwal is based in Cardiff, UK, with offices in Singapore, Shanghai, Tokyo and Athens, and with an extensive surveyor network around the globe.

The Idwal Grade®
The Idwal Grade is the gold standard of ship condition grades, used by financiers, shipbrokers, and shipping companies across the globe.

Right of Reliance
All of Idwal's projects, inspections, and services come with a right of reliance on report validity and accuracy, giving you peace of mind.

Technical Excellence
All Idwal services and inspection reports are underpinned by an extensive QA programme, supported by shoreside ex-seafarers.

Speed of Service
Idwal strives to accommodate even the most short notice inspections, with reports delivering within 5 working days.

Dedicated Platforms
Idwal's in expert in-house software engineering team have developed dedicated platforms for condition improvement & S&P services.

ESG & Social Impact
Alongside Idwal's standard condition inspections and data benchmarking, we have developed ESG and Social Impact scores for the market.
Get in touch
Got a question about our underwater hull inspections? Get in touch with the Idwal customer team who will be more than happy to help.