Marine Surveys Explained: What They Are, Why They Matter, and a Smarter Way to Do Them

If you own a boat, are buying one, or looking to insure one, chances are you’ve come across the term “marine survey.” But what exactly does that mean, and do you always need one?

Let’s break it down, and then look at how technology and smarter processes are changing the way surveys are handled.

Surveys and Ahoy! (Quick Guide)

Here’s what you need to know about marine surveys when working with Ahoy!:

Ahoy! requires a survey only in the following cases:

• An E&S / Yacht policy is needed
• An Admitted policy is needed and the boat is 20 years old or more
• An Admitted policy is needed and previous claims history warrants a survey

What types of surveys does Ahoy! accept?

Ahoy! accepts:

• Surveys conducted by accredited professionals (NAMS or SAMS), and
• In many cases, self surveys

If a survey is required for your policy, Ahoy! will let you know which type is appropriate for your situation.

If a self survey is relevant in your case, you can download the form here and follow the instructions provided.

Once completed, surveys should be sent to: documents@ahoy.insure. Please use the subject line: “Boat Survey – YOUR NAME”

What Is a Marine Survey?

A marine survey is a detailed inspection of a boat’s condition, safety, and overall value. It’s typically performed by a certified professional who evaluates everything from the hull and structure to onboard systems and safety equipment.

Traditionally, surveys are used in four main situations:

• Buying or selling a boat
• Securing financing for the boat purchase
• Securing insurance coverage
• Assessing damage after an incident

Think of it as a “full health check” for your vessel, helping you understand its current state and any potential risks.

Why Marine Surveys Are Important

1. Safety First

A proper inspection can uncover hidden issues that may not be obvious, from structural weaknesses to outdated safety gear. Catching these early helps prevent bigger problems on the water.

2. Insurance and Loan Requirements

Many insurance and financing providers require a survey, especially for older or higher-value boats. It helps verify the condition of the vessel and ensures accurate coverage and value.

3. Understanding Value

Surveys provide a clear picture of what a boat is actually worth, which is useful when buying, selling, or refinancing. This is as the boat condition is a major input into increasing or decreasing value as compared to the average market price. In some cases, when one buys a boat, a survey might uncover some repairs that the boat needs to go through which is important to know so to 1) make sure these are conducted and 2) so to factor the cot of these repairs into the price negotiation

4. Avoiding Costly Surprises

Identifying issues early can save significant money over time, especially when small repairs are handled before they turn into major ones.

Common Types of Marine Surveys

Condition and Valuation Survey

A comprehensive inspection, often used during a purchase or for financing and insurance underwriting. It reviews the boat’s overall condition and assigns an estimated value.

Damage Inspection

Conducted after an accident or severe weather event, focusing on identifying the cause and extent of damage.

Appraisal

A focused evaluation of market value, without a full technical inspection.

Sea Trial

An on-the-water test to evaluate how the boat performs in real conditions.

Traditional Survey vs. Self-Survey

For condition and valuation/appraisal purposes (which are typically why insurance companies require a survey) surveys fall into two main categories:

1. Traditional/professional survey

2. Self-survey

 A traditional/professional survey should be conducted by an accredited marine surveyor. This requires a high level of proficiency, experience and formal accreditation. If you need or would like to have such a survey conducted for your boat you can find such professional surveyors either through the National Marine Association of Surveyors (NAMS) which surveyors database could be accessed through this link or the Society of Accredited Marine Surveyors (SAMS) which surveyors database could be accessed through this link 

The average cost of a professional survey for insurance purposes in the US ranges between $15 to $20 per foot. To put it in context, for a common boat size of 36 feet the cost could range between $550 to $750. Many times these surveys will also have a minimum price tag which could be between $500 and $1,000.

Wait time to engage a surveyor might range between one to two weeks where during peak season it could also reach 2 to 4 weeks. All is obviously highly dependent on location and other circumstances (e.g. it will be way more difficult to find a surveyor immediately after a hurricane in FL).

For all of these reasons and many others people tend to either avoid surveys (if they can) or try to opt for self surveys.

A self survey is exactly what it sounds like: an inspection performed by the boat owner or another individual, without requiring professional certification.

While these surveys are less formal than professional ones, they can still provide useful information about a vessel’s condition and may be sufficient in situations where a full professional survey is not necessary.

In many cases, Ahoy! may accept a self survey instead of a professional one, depending on the boat and the underwriting requirements.

When a self survey is appropriate, Ahoy! will provide instructions and a downloadable survey form that guides you through the process.

The Bottom Line

Marine surveys are an important part of responsible boat ownership. They help ensure safety, protect your investment, and support smoother insurance processes.

But they don’t always have to be complicated.

Understanding when a survey is required and which type is appropriate can make the process much easier.

Here’s what you need to know about marine surveys when working with Ahoy!:

Ahoy! requires a survey only in the following cases:

• An E&S / Yacht policy is needed
• An Admitted policy is needed and the boat is 20 years old or more
• An Admitted policy is needed and previous claims history warrants a survey

What types of surveys does Ahoy! accept?

Ahoy! accepts:

• Surveys conducted by accredited professionals (NAMS or SAMS), and
• In many cases, self surveys

If a survey is required for your policy, Ahoy! will let you know which type is appropriate for your situation.

If a self survey is relevant in your case, you can download the form here and follow the instructions provided.

Once completed, surveys should be sent to: documents@ahoy.insure

Please use the subject line: “Boat Survey – YOUR NAME”

If you’re unsure what type of survey applies to your boat or your insurance situation, the Ahoy! team is always happy to help guide you through it.

Need guidance?

📧 support.agents@ahoy.insure
📞 (866) 665-2469 
🕘 Monday – Friday | 9 AM – 5 PM EST