Who Books Dry-Docking? Repair-Buying Roles Explained

Who books dry-docking?

The DOC holder (the Document of Compliance holder, the company legally responsible for the ship's safety management) owns the decision to dry-dock. In practice, the technical manager and the fleet's technical superintendent plan and execute it. The ship's class society sets the survey deadlines that force the docking.

For a repair yard, chandler or service company, that means the buying conversation starts with the technical department, not the port agent or the master.

The roles that decide, plan and buy

Dry-docking is a technical purchase, not a port call purchase. Four roles matter, and each buys different things.

• DOC holder / owner: approves the budget and the yard. On a managed fleet, the manager proposes and the owner signs.
• Technical manager: owns the dry-docking plan, the specification and the yard tender. This is the person who compares quotes.
• Technical superintendent: writes the work list, attends the docking and signs off completed jobs. Suppliers who impress the superintendent get repeat work.
• Procurement / purchasing: issues the purchase order and handles terms once the technical side has chosen the supplier.

Commercial and chartering teams are informed, not decision-makers. They care about off-hire days, which is why the docking date is often fixed around a charter fixture.

What forces the date: class surveys and age

A dry-docking plan is driven by the class survey (the statutory inspection cycle run by a classification society such as Lloyd's Register, DNV or Bureau Veritas). The main triggers are the special survey and the intermediate survey, both of which can require the vessel to be out of the water.

Vessel age is the simplest public signal. A new ship may have several years before its first special survey, while a ship over 15 years old is likely to face more frequent and heavier survey requirements. Research on dry-docking scheduling treats the docking interval as a decision variable balanced against technical and economic factors. A 2026 study on dry-docking scheduling for commercial vessel fleets proposed a decision-support framework combining machine learning and optimisation to plan dockings across a fleet (Nemertes).

For a supplier, the practical rule is: a vessel approaching a special survey window is a live repair prospect. One with a fresh survey certificate is not.

How to estimate a survey window without a price list

You do not need the yard's quotation to know roughly when a ship will dock. You need four public or semi-public facts.

1. Build year and vessel type: gives the age and the typical survey cycle.
2. Class status: a current class certificate with no conditions suggests no urgent docking; a near-due special survey suggests one is coming.
3. Recent port-call pattern: a gap in trading, or a deviation to a repair port, often signals a docking or a major repair.
4. Fleet announcements: newbuild deliveries and fleet renewal programmes shift when older ships go in for survey or leave the fleet.

This is an estimate, not a booking. Use it to time outreach, not to promise a slot.

What current events tell us about repair capacity

Repair capacity is being reshaped in several regions. According to MarineLink (October 2026), Mammoet Canada Eastern, Port of Argentia and Argentia Capital signed a memorandum of understanding to advance a floating dry dock and marine repair facility in Newfoundland and Labrador. New capacity means new buying contacts at a new yard.

On the US side, the Navy is building large dry-dock infrastructure. According to Marine Insight (October 2026), the US Navy's largest infrastructure project includes a 1,210-foot dry dock for aircraft carriers. According to Marine Insight (October 2026), Pearl Harbor Naval Shipyard is preparing its first new dry dock since World War II.

Commercial yards are also changing hands. According to gCaptain (October 2026), Caddell Dry Dock & Repair announced a leadership transition, with Salvatore Molino named President and Steven Kalil becoming Chief Executive Officer. Leadership changes at a yard often reset supplier relationships.

Fleet renewal adds another signal. According to Splash247 (October 2026), OEG Marine Services ordered three crew transfer vessels from Diverse Marine, with delivery scheduled through 2027. Newbuilds entering service can push older tonnage toward survey and repair decisions.

Where suppliers fit in the dry-docking plan

Chandlers, bunker suppliers, port agents and marine service companies all have a role, but the entry point differs.

• Repair yards: bid on the specification issued by the technical manager; the superintendent is your technical contact.
• Chandlers: supply the consumables, cabin stores and deck items during the docking; the superintendent's team orders them.
• Bunker suppliers: the vessel may need a stem before or after docking; coordinate with the agent and the technical team on timing.
• Port agents: handle the husbandry around the repair port, including crew changes and cash to master.

If you want to reach these buyers before the docking is confirmed, the timing question matters more than the price list. Our guide on dry-docking cycles and when suppliers should reach out covers the outreach sequence. For the role-by-role buying picture at a port call, see who buys at the port call by vessel type.

How VesselReach helps

VesselReach turns vessel movements into a timed repair conversation. It detects vessels near your target ports and those scheduled to arrive, so you can act before the docking decision is final. Its AI identifies the company behind each vessel and finds the technical superintendent, technical manager and procurement contacts by role. Outreach runs by email, WhatsApp and phone, with automated follow-ups and human handoff when a reply needs a person. That means your team spends less time guessing which ships are due for survey and more time talking to the people who book the yard. Book a VesselReach demo to see how it works on your ports.