How Do I Plan a Yacht Refit Around Its Five-Year Class Survey?

A class renewal survey, often called a special survey, checks the yacht against its classification society’s applicable rules. The normal class cycle is five years, with annual surveys and an intermediate survey between renewals.

That does not mean every yacht must undergo the same five-year inspection. First establish whether the yacht maintains classification, which society classes it, its class notation, and whether it operates privately or commercially.

An unclassed private yacht does not acquire a class renewal obligation simply because it is five years old. It may nevertheless have flag, insurance or other inspection requirements. Equally, a yacht originally built to class should not be assumed to remain in class without checking its present status.

Class and statutory certification are also different. Statutory surveys concern requirements imposed by the flag administration and applicable conventions or yacht codes. A classification society may perform both roles when authorised, but completion of one survey does not automatically complete the other.

Ask the captain or technical manager to assemble:

• The current class certificate and complete survey status.
• Statutory certificates, expiry dates and endorsement records.
• Outstanding conditions of class and other recorded requirements.
• Previous renewal, docking and shaft survey reports.
• Records of repairs, modifications and machinery maintenance.

Confirm the applicable legal and certification requirements with a qualified maritime adviser for the yacht’s particular flag, size and operating status.

The renewal deadline is the starting point. Annual class surveys commonly have a window extending three months before and three months after the anniversary date. Do not apply that annual window to the five-year renewal deadline.

The intermediate class survey is normally associated with the second or third annual survey. The renewal survey follows its own completion and crediting rules. Under the normal class framework, renewal examinations may begin at the fourth annual survey and progress towards completion by the fifth anniversary.

Completing a renewal early can affect the next due date. Rules may preserve the existing cycle when completion falls within three months before the due date, while earlier completion can bring the next renewal forward. Obtain the society’s written confirmation before choosing an early yard slot.

For example, if the renewal is due on June 30, 2027, do not assume a refit ending in August 2027 is acceptable because annual surveys have a three-month allowance. Ask class to confirm the latest permissible completion date and the consequences of any proposed change.

An extension is not a scheduling entitlement. Exceptional extensions require approval and should never be the baseline assumption in a yard contract or cruising programme.

Also check docking dates separately. The normal class framework requires two bottom examinations during a five-year period, with no more than 36 months between them. Whether an examination can take place afloat depends on the applicable rules and approvals. A convenient refit date must satisfy both the renewal deadline and the bottom-survey interval.

A five-year survey is not a standard shopping list that can be priced accurately from yacht length alone. Age, construction material, machinery arrangements, previous findings and the survey scheme affect the work required.

Request a planning discussion with the classification society and, where relevant, the flag administration or its authorised organisation. Ask for the remaining survey scope and the preparation needed for each item.

Build a work list that identifies:

• Hull spaces and tanks requiring access, examination or testing.
• Thickness measurements or other examinations where applicable.
• Machinery items requiring opening, testing or documentary review.
• Underwater equipment requiring examination or measurement.
• Outstanding defects and previously imposed survey requirements.
• Statutory inspections, equipment servicing and witnessed tests.

Not every yacht needs every engine dismantled, every tank opened or every shaft withdrawn at each renewal. Shaft survey requirements depend on the installation, survey history and applicable arrangements. Confirm the requirement rather than copying another yacht’s specification.

Likewise, an approved continuous survey scheme may distribute eligible examinations across the class period. It does not remove the obligation to complete the required scope. Ask which items have already received survey credit and which remain outstanding.

Turn the agreed scope into a responsibility list: who opens the item, who inspects it, who repairs it, who witnesses the test and who supplies the final report. This is more useful for pricing than a single line reading “complete five-year survey”.

Select the yard for the technical programme, not only its available berth or paint facilities. Ask how it will provide safe access to the required spaces, coordinate specialist attendance and accommodate findings that emerge after opening up.

Tanks and enclosed spaces need proper preparation and safe-entry arrangements. Inspection access should be planned before accommodation protection, scaffolding and other trades make the work more complicated.

For underwater work, establish the exact haul-out or docking arrangement and confirm that the yacht can be supported safely. An approved in-water survey is not simply a diver’s condition report. Acceptance depends on the vessel, inspection method, conditions and relevant authority’s requirements.

On applicable UK vessels, in-water survey arrangements require formal acceptance; additional restrictions can apply with age. Do not substitute an afloat inspection for a planned docking without written agreement.

Refit changes need a separate approval review. Present proposed structural alterations, machinery changes, electrical modifications and changes affecting safety arrangements to class and flag early enough to identify the required submissions.

Ask whether revised drawings, calculations, stability information, material records or witnessed tests will be needed. A replacement installation that fits physically is not necessarily ready for acceptance.

Finally, identify inspection hold points. These are stages when work must remain accessible until the required inspection or test is complete. Put them into the yard programme so insulation, joinery or coatings do not conceal work prematurely.

The surveyor’s attendance fee is only one budget line. Preparation, dismantling, access, repairs and reinstatement must be priced separately rather than assumed to be included.

Divide the budget into four parts:

• Known survey work: agreed opening-up, cleaning, examinations, servicing and tests.
• Owner’s refit scope: upgrades, paint, interiors and other elective improvements.
• Project costs: haul-out, blocking, utilities, waste handling, management, travel and trials.
• Discovery reserve: money held for defects identified during inspection.

Ask for separate prices for survey attendance, plan approval and specialist testing. Check whether quotations include repeat visits, travel, overtime, lifting equipment and the removal and replacement of access panels.

There is no reliable universal dollar-per-metre price for a five-year survey combined with a refit. A quotation excluding access and reinstatement cannot be compared directly with one including them.

Choose the discovery reserve from the yacht’s condition and the amount of uncertainty, rather than treating a percentage as a rule. For illustration, a 15% reserve against $200,000 of defined technical work adds $30,000. That is a budgeting example, not a published industry tariff or a sufficient allowance for every yacht.

For each provisional item, agree the labour rates, material mark-ups and approval process. Require a written description, price and schedule effect before authorising additional work, except where immediate safety action is necessary.

Use the following sequence as a planning framework, adjusting it to the yacht and scope. These are suggested management milestones, not mandatory lead times.

Nine to twelve months before the yard period: obtain survey status, review previous findings and separate mandatory work from elective improvements. Discuss survey timing with class and flag before committing to cruising dates.

Six to nine months before: issue the same specification to shortlisted yards. Compare exclusions, access arrangements, specialist availability and the proposed sequence, not just headline totals. Establish who controls technical decisions and change orders.

Three to six months before: progress required approvals, confirm equipment lead times and agree survey attendance. Identify machinery that must be running for tests and spaces that must be empty for inspection.

Before arrival: confirm the inspection and test plan, prepare records and finalise safe access arrangements. Make the required reports available to the attending surveyor rather than searching for them during the yard stay.

During the refit: record findings, obtain repair acceptance where required and keep the remaining survey scope visible. Do not close up an inspected area until the relevant release has been obtained.

Before departure: verify that required tests are complete, deficiencies have been resolved or formally addressed, and the necessary certificates and endorsements are in place. Collect approved drawings, service reports, measurement records and operating instructions.

Allow a distinct commissioning stage after installation. Dockside testing, sea trials, defect correction and final documentation should appear as activities in the programme, not as an optimistic note beside the launch date. Avoid promising the first owner trip or charter against an untested technical completion date.