IMIS Home Page ~ International Marine Insurance Services
Try Al Golden and company at IMIS. Old time professionals, who may not be the cheapest, but won't try to rob you with policy exclusions and secretes either. If you get a better quote from your car or home insurer, they'll also be glad to compare the details and tell you what is missing. (Like wreck removal
, or environmental costs, or "we only pay if you sink on weekdays".)
Your boat, your experience and training, the number of crew, that and more, all will affect the quote.