Purchasing a vessel is one of the largest investments a shipping company will make. Whether you're acquiring a second-hand bulk carrier, an offshore support vessel, or a superyacht, the condition of the vessel at the time of purchase will determine the true cost of ownership for years to come.
A professional pre-purchase survey is the single most important piece of due diligence a buyer can conduct. It provides an independent, expert assessment of the vessel's structural condition, machinery state, class compliance, and commercial value — before you commit to the purchase.
What Does a Pre-Purchase Survey Cover?
Hull & Structure
Our surveyors conduct a thorough inspection of the vessel's hull plating, frames, bulkheads, decks, and structural members. Ultrasonic thickness measurements are taken at critical locations to identify corrosion wastage and assess structural integrity against the vessel's original scantlings.
Machinery & Equipment
Main engine, generators, auxiliary machinery, pumps, deck equipment, and navigation systems are all assessed for condition and functionality. We review maintenance records, running hours, and any outstanding deficiencies or class conditions.
Class & Certificates
We review all classification and statutory certificates for validity and any open conditions, recommendations, or memoranda. A vessel approaching survey due dates or carrying multiple class conditions represents significant future expenditure that should be reflected in the purchase price.
Red Flags to Watch For
- Excessive hull corrosion or steel wastage beyond class limits
- Outstanding class conditions or port state deficiencies
- Irregular maintenance records or gaps in history
- Signs of temporary or cosmetic repairs masking structural issues
- Main engine or generator hours inconsistent with vessel age
- Missing or expired statutory certificates
Why Choose Green Ship Technologies as Your Surveyor?
Our surveyors combine class society experience with hands-on operational backgrounds in shipyards and offshore engineering. We have conducted pre-purchase surveys across tankers, bulk carriers, OSVs, tugs, and passenger vessels worldwide. Our reports are detailed, objective, and built to protect the buyer's interests.
Green Ship Technologies operates independently of ship brokers, sellers, and classification societies — ensuring our reports reflect an unbiased assessment of the vessel's true condition.


