Pre Purchase Marine Survey Motor

Pre Purchase Marine Survey

Full Condition Survey

A full condition pre purchase marine survey for motor boats involves a close examination of everything that is accessible, and trying out the working items as far as is reasonable. It is a static and non-destructive inspection.

The scope covers, in bare outline:

  • The hull and deck structures and the connections between them.
  • The hull fittings, with particular attention to the ballast keel and its bolts, the steering gear and so on.
  • The deck fittings, where working items such as winches and windlasses are tried out to ensure they are in working order.
  • The interior joinery, furnishings, and linings.
  • Installed systems and equipment, where seacocks, hoses, and safety devices on electrical systems, are particularly examined. Electrical equipment is switch-tested. I do not test or certify gas systems, but will usually try them out and comment on any obvious defects.
  • The engines, gearboxes, stern-gear or stern-drives, and generators are examined to assess their external state, and to look for leaks and any insecurity. A fair amount can be gleaned from such an inspection, but it does not provide a full picture of the machinery’s mechanical state.
  • I may start engines if I have permission, if they are in-commission, and if the circumstances allow. As I have a good knowledge of engines and transmissions, I always strongly recommend that the machinery should be inspected and sea-trialled by a qualified marine engineer, once the rest of the survey has been found satisfactory.
  • The engine survey also includes all the tanks, fuel lines, external cooling lines, exhausts, controls, batteries, ventilation arrangements, and other such engine-room ancillaries.


Partial Structural Survey

Unless the vessel is quite new, or you know it well, it is better to have a full survey. However, if you are content with a limited scope, I am prepared to survey only those areas which you specify. The cost is two-thirds that of the full survey. A partial structural survey would be limited to:

  • The Hull – exterior and interior surfaces and the attachment of the main reinforcement members only
  • The Hull Fittings – all external hull fittings, the keel bolts, and the steering gear
  • Decks – exterior and underside, and the hull to deck joint where accessible
  • Engines – just the engine mountings and the stern gland security.

You can read more detail on the process for particular construction methods at the Materials pages.



Call 01929 480064 or email Anthony Byrde to discuss your own requirements further