Firstly, insurance companies give higher discounts to those who've been previously insured, claim-free, for a pleasure boat. Secondly, a boat (unlike a car) retains its book value better, especially if it's serviced regularly and properly.
Practically all causes of damage are covered, ranging from the consequences of an external peril (e.g. a collision, running aground, storm, lightning), loss of a screw propeller or theft... to the consequences of our own shortcomings (e.g. mistakes in the design or boat-building). Even the propulsion unit (consisting of the motor plus the reverse mechanism, screw propeller, propeller shaft, motor cooling and the instrument panel) is, for the first 10 years, insured too for the consequences of our own shortcomings. As for the replacement of parts, a deduction for old age will be applied for outdated outboard motors, sails, spray hoods and suchlike.
What's more, the ‘deductible' (the amount you have to pay yourself under the insurance), that's usual on an all-risks policy, reduces, in the most cases, by 20% per claim-free year. If you suffer damage after being insured claim-free for 3 years, then, in certain cases, you receive protection in the form of the no-claims discount (NCD). In other words: your premium, in that event, remains unchanged after a claim.
Finally, an extended version of the comprehensive insurance policy also provides in a vessel helpline, available 24/7, which can proof its worth in serious cases.
Similarly, for insuring the repatriation costs of the persons on board, of the vessel and/or of the trailer, we have some good products to choose from.
It's worth your while taking out an extended version of the comprehensive insurance policy - even for an older boat.