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SURVEYOR'S HANDBOOK · RUNNING A SURVEY PRACTICE

Professional indemnity insurance for marine surveyors: why claims cost money even when you win

UPDATED 12 NOVEMBER 2026 · 2 MIN READ · 4 SOURCES

Why marine surveyors carry professional indemnity insurance, what IIMS requires of small craft surveyors, how long a claim can follow a survey, and what a defended claim cost even when the surveyor won.

A survey report is relied on long after the surveyor has left the boat. If a buyer, an owner or an insurer believes it missed something, the claim lands on the surveyor, and defending it costs money whether or not it succeeds. Professional indemnity insurance pays for both.

What the codes require

The IIMS Small Craft Code of Practice, which applies to its yacht and small craft surveyor members, requires the surveyor to maintain professional indemnity insurance in force at all times, at a realistic level for the surveyor's work and professional status. It sets no amount.

The duty it insures is set by the courts more than by the policy. ITIC describes it as the due skill and care of a competent surveyor in the circumstances of the case, owed in contract and in negligence. The NAMS guidelines for writing reports add that the standard is set by the accepted practice of surveyors as a group: a surveyor who skips a tool most surveyors use, such as a moisture meter, can be found negligent if that tool would have found the defect.

Winning still costs

Insurance Business reported a claim from ITIC's claims review. A surveyor had inspected the loading and lashing of a yacht carried as cargo on a heavy-lift ship and certified the arrangements. The yacht was lost overboard in heavy weather, and cargo insurers sought to hold the surveyor liable for the full loss, over $5 million.

The claim was first presented nearly six years after the loss, and the insurers then missed the deadline to start proceedings, twice, in two jurisdictions. The courts upheld the time bar. ITIC still funded over $200,000 in legal costs to get there. Its claims director's lesson was to be clear about the scope of the appointment and to document any conditions, because the risk of a claim can remain for years.

How long a survey stays a risk

In England and Wales, the Limitation Act 1980 generally allows six years from the breach for a claim in contract, and six years from the damage, or from when it became known, for a claim in negligence. Other countries set their own periods. Keep your notes, photos and terms for at least as long as a claim could be brought where you work.

What lowers the risk

ITIC's golden rules for surveyors cover most of it:

  • Identify the client on day one, and get clear, complete instructions.
  • Have terms and conditions that set out who is responsible for what.
  • State that the report is only for the intended recipient and use.
  • Notify your professional indemnity insurer of any circumstance that could become a claim.

ITIC also warns that oral comments to a client can later be denied, so everything belongs in the written report. A report built from what you said and photographed at each item is the record you'd want if a claim arrives years later. See terms of engagement and codes of conduct.

Frequently asked

Do marine surveyors need professional indemnity insurance?

There's no general law requiring it, but professional bodies and clients expect it. The IIMS Small Craft Code of Practice requires yacht and small craft surveyor members to keep professional indemnity insurance in force at all times, at a realistic level for their work and professional status.

What does professional indemnity insurance pay for?

Compensation if a client proves the surveyor was negligent, and the legal costs of defending a claim, which can be large even when the claim fails. In one case ITIC reported, it funded over $200,000 in legal costs on a claim the surveyor won.

How long after a survey can a claim be made?

In England and Wales, the Limitation Act 1980 generally gives six years from the breach for a claim in contract, and six years from the damage, or from when it was known, for a claim in negligence. Other countries have their own limits.

When should I tell my insurer about a problem?

As soon as you know of a circumstance that could lead to a claim. ITIC's advice is to notify the circumstance to your professional indemnity insurer.

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Terms you'll use

Full glossary
UNDERWATER GEAR

Anode

A block of zinc, aluminium or magnesium fitted to a boat's underwater metal that corrodes in its place, so the propeller, shaft and fittings last.

ENGINE AND FUEL

Anti-siphon valve

A small valve at the top of a petrol tank's fuel outlet that stays closed unless the engine's fuel pump is drawing, so a broken fuel line can't siphon the tank into the bilge.

ELECTRICAL

Battery management system

The electronics that watch a lithium battery's voltage, current and temperature and disconnect it before it's damaged.

ELECTRICAL

Battery switch

The heavy rotary switch that connects or isolates a boat's batteries, often marked 1, 2, Both and Off.

PLUMBING AND TANKS

Bilge pump

An electric or manual pump that removes water from the lowest part of the hull, usually started automatically by a float switch when water rises.

ELECTRICAL

Bonding system

Wires, usually green, that connect a boat's underwater metal fittings to each other, the anodes and the DC negative.

EUROPEAN PAPERWORK

Brodica

The Croatian term for a boat over 2.5 m up to 15 m, registered and inspected by the harbourmaster; craft over 15 m are yachts surveyed by the Croatian Register of Shipping.

HULL AND STRUCTURE

Bulkhead

A wall across or along the inside of a boat, bonded to the hull and deck, that stiffens the structure and often carries rig or engine loads.

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