Boat Surveys, Explained: What Every Buyer (and Owner) Should Know

A marine survey is the closest thing boat buying has to a lie detector. Done right, it is the few hundred dollars that saves you tens of thousands. Done wrong, or skipped, it is how people end up owning someone else's deferred maintenance.

When you actually need one

Three moments, mainly. Buying a used boat, because the condition and value survey is what tells you what the boat is actually worth and what is actually wrong with it. Insuring an older boat, because most insurers require a recent survey once a boat reaches 15 to 20 years old, with exact triggers varying by underwriter. And financing, because lenders want the same assurance.

One thing working surveyors emphasize: surveys expire in practice. An old survey describes an old boat. Insurers commonly want one completed recently, often within weeks for an older vessel.

What it costs and what you get

BoatUS puts typical pre-purchase survey pricing around 20 to 22 dollars per foot, and offers a warning worth repeating: a suspiciously cheap quote should make you ask what is being skipped. Abbreviated "light" surveys exist, and banks and insurance companies often will not accept them.

A proper survey works through the hull and structure, the electrical systems, the propulsion, and the boat's systems inside and out. One veteran surveyor's rule of thumb for the entire buying process, survey plus haul-out plus sea trial extras, lands around 160 dollars per foot, which sounds like real money until you price a hidden transom problem.

The two rules that protect you

First, hire your own surveyor, never the one the seller or the seller's broker suggests. The surveyor works for whoever pays them, and you want that to be you. Second, look for the letters SAMS or NAMS, the two accreditation bodies that mean a surveyor has credentials behind the clipboard.

Where to find one

Waypoint lists SAMS-accredited surveyors across every region of Florida, from Jacksonville to the Keys to the Panhandle, each verified against their own practice before listing. Browse them at nautical.network/directory/browse?category=survey, and book before your deadline week, because the good ones are exactly as backed up as you would expect.