What To Know When Choosing A Marine Surveyor
When choosing a marine surveyor, you want someone who has the experience, but just as importantly, the motivation. Someone who won’t be rushed. Someone who genuinely has the buyer’s best interest in mind. Someone who is honest.
Is this really any different than choosing someone for any other job? Maybe not. In many ways, it all comes down to people skills, integrity, and work ethic. But because a marine survey can directly affect your safety, your finances, and whether or not you can insure or finance the boat, choosing the right surveyor matters more than most people realize.
What A Marine Surveyor Is — And Is Not
When people refer to a “marine surveyor,” they are typically talking about a hull surveyor, sometimes also called a general marine surveyor. A general marine surveyor’s role is to inspect the overall condition of the vessel. This includes:
- Structural integrity of the hull, deck, and superstructure
- Installation and condition of major onboard systems
- Safety equipment
- General mechanical, electrical, and plumbing systems
- Evidence of damage, moisture intrusion, or poor repairs
- Overall condition relative to age and type of vessel
- Fair market value of the yacht
Think of the general surveyor as the person responsible for evaluating the boat as a complete system, not just individual components. They are also the eyes and the ears of insurance companies and lenders, although they are not actually associated with them in any way.
A hull or general marine surveyor is not:
- An engine surveyor
- A dedicated electrical surveyor
- A rigging specialist
- A propulsion or drivetrain specialist
Those inspections are separate, specialized surveys that require significant additional time and expertise. While it is common for a general surveyor to have strong mechanical or electrical knowledge—and in some cases to perform more in-depth inspections of those systems—those services are separate from a standard pre-purchase survey and should be treated as such.
The Surveyor’s Role In The Bigger Picture is essentially to act as the first layer of defense. Their job is to:
- Inspect the entire vessel methodically
- Identify deficiencies, concerns, or red flags
- Determine whether systems appear to be functioning as intended
- Point out areas that warrant deeper troubleshooting or specialist inspection
Understanding what a surveyor is—and is not—helps set proper expectations.
A good surveyor:
- Looks at the whole boat
- Knows where problems tend to hide
- Knows when to recommend further investigation
- Does not pretend to be a specialist in every trade
That honesty is part of doing the job correctly.
Marine Surveyor Accreditation In The United States
If you are buying a yacht in the United States, there are two primary professional accreditation societies for marine surveyors:
- Society of Accredited Marine Surveyors (SAMS)
- National Association of Marine Surveyors (NAMS)
Insurance companies and lenders typically look for surveyors accredited through one of these organizations, which is why understanding the differences and similarities is important. Within SAMS, surveyors fall into two categories:
- Surveyor Associate (SA)
- Accredited Marine Surveyor (AMS)
Every surveyor who applies to SAMS must start out as a Surveyor Associate. To upgrade to Accredited Marine Surveyor, the SA must:
- Perform surveys for a minimum of five years
- Complete continuing education requirements
- Attend SAMS regional and international meetings in person
- Submit survey reports annually for review and critique by their SAMS regional director
After five years, the surveyor associate must apply for an upgrade to AMS. If they do not, they risk losing their SAMS membership altogether.
In some cases, if an applicant demonstrates exceptional levels of prior experience in the marine industry, SAMS may credit up to three years of experience, meaning the surveyor can apply for AMS status after only two additional years.
Is An AMS Always Better Than An SA?
Not necessarily.
And yes, I’ll admit my bias here — I’m still an SA for another year and a half. But from what I’ve learned in the field, accreditation level alone doesn’t tell the whole story. Some older, long-established AMS surveyors are extremely experienced and knowledgeable. However, some have fallen behind on continuing education or have become a little too comfortable in their process. Their reports can be extremely basic, difficult to read, and light on detail. Their inspections may be abbreviated, focusing only on obvious or easily accessible areas rather than truly inspecting every space possible.
That said, there are also many AMS surveyors who genuinely care about their work and their clients. They take their time, don’t put artificial time limits on inspections, and produce clear, thorough reports. Those are the surveyors you want inspecting your yacht.
NAMS Explained
The National Association of Marine Surveyors (NAMS) operates under a different structure than SAMS, though the intent is the same: to promote professionalism, competence, and continuing education.
Within NAMS, surveyors generally fall into three categories:
- NAMS Apprentice
- NAMS Associate
- NAMS Certified Marine Surveyor (CMS)
The Apprenticeship Program is designed for individuals entering the marine surveying profession or transitioning into it from other marine industry roles. Apprentices typically work under the guidance of an experienced, certified surveyor and are expected to gain hands-on field experience while learning proper inspection techniques, report writing, and ethical standards.
After completing the apprenticeship phase and meeting experience requirements, a surveyor may advance to the Associate level. Associates are actively performing surveys but have not yet met all the requirements for full CMS certification.
To become a NAMS Certified Marine Surveyor (CMS), a surveyor must demonstrate sufficient experience, pass examinations, submit survey reports for review, adhere to professional and ethical standards, and complete ongoing continuing education. While the progression differs from SAMS, the underlying concept is the same: surveyors advance through experience, education, and peer review, not simply time in the industry.
How I Approach A Survey
One of the things I tell my clients is that my job is to inspect every single space on the boat. Under every bed. Inside every locker. Behind cabinetry. In engine spaces. In lazarettes. Everywhere.
I can’t tell you how many times I’ve pulled out drawers or removed access panels only to find bulkhead tabbing separation, moisture intrusion, or rot that would have otherwise gone unnoticed. When clients ask me, “What are you looking for?” my answer is always the same:
“Anything.”
The goal is to go through as much of the vessel as possible and look for deficiencies in structure, plumbing, electrical, mechanical systems, safety equipment, and overall installation quality. That level of detail takes time, patience, and a surveyor who isn’t rushing to the next job.
Should You Let Your Yacht Broker Choose Your Marine Surveyor?
Ideally, no — or at least not entirely.
A good yacht broker should provide you with a list of reputable surveyors in the area and allow you to make the final decision. That’s how it should work. In reality, many brokers will steer clients toward one or two surveyors they frequently work with. This doesn’t automatically mean anything unethical is happening. Brokers often prefer surveyors they are comfortable with and know what to expect from. However, it is always in your best interest to do your owner research and hire the surveyor yourself. Make sure to ask for sample survey reports and talk to them over the phone.
How To Find A Marine Surveyor
A good place to start is the SAMS and NAMS websites. Both organizations provide searchable maps showing accredited surveyors in your area along with contact information.
From there:
- Google the surveyor’s name
- Look for reviews or testimonials
- Cross-reference them with SAMS or NAMS to confirm accreditation
It’s also worth noting that many excellent surveyors have very little online presence. Some of the best surveyors in the industry are found primarily through word of mouth. Talking to boat owners, captains, mechanics, and yards can lead you to highly qualified professionals who don’t spend much time marketing themselves.
A Note On Survey Report “Grades” And Why People Often Panic For No Reason
One of the most misunderstood and emotionally charged parts of a marine survey report is the vessel’s overall condition rating. It’s extremely common for owners or buyers to panic when a boat is graded anything below “Average,” often assuming that an insurance company will automatically refuse coverage. That assumption is simply not true.
A marine surveyor’s job is to accurately document the observed condition of a vessel — not to protect feelings, preserve resale value, or make the report more “palatable” for insurance purposes. Expecting a surveyor to inflate or soften a condition rating undermines the entire purpose of the survey and exposes buyers, owners, and insurers to unnecessary risk.
What many people don’t realize is that there is no single, universal grading system that all surveyors are required to follow. Each surveyor defines and applies their own condition ratings based on experience, professional judgment, and accepted industry guidance. In my case, my grading system aligns closely with the categories suggested by the Society of Accredited Marine Surveyors (SAMS), which include Excellent, Above Average, Average, Fair, Poor, and Restorable.
A vessel being rated as “Fair” does not mean it is a bad boat, nor does it mean it is uninsurable. Over the years, I’ve spoken directly with many insurance underwriters and brokers, often after a client calls me worried or upset about their survey results. Reputable marine insurance companies routinely insure boats that fall into the “Fair” category, particularly when the vessel’s age and use are taken into account.
In most cases, the insurance company will review the survey findings and identify specific items they would like addressed. They may require certain repairs or upgrades to be completed and ask for proof within a reasonable timeframe. This is a normal part of the underwriting process and is not limited to boats rated “Fair” or “Poor.” It also happens regularly with boats rated Average or even Above Average.
Where emotions tend to run highest is not with the condition rating itself, but with what the survey findings require. When deficiencies demand significant time, money, or immediate attention, especially if the owner or buyer was not prepared for that reality — frustration often follows. That reaction is understandable, but it does not mean the survey is inaccurate or unfair. It simply means the vessel’s condition did not align with expectations.
A marine survey is not a pass-or-fail test, and a condition rating alone does not determine whether a boat can be insured. A proper survey provides transparency, documents risk, and gives insurers the information they need to make informed decisions. If a vessel is worth buying, owning, or insuring, then understanding its true condition, even when that information is uncomfortable, is essential.
How Long Should A Marine Survey Take?
As a rough estimate, a very thorough inspection will take approximately 1 to 1.5 hours for every 10 feet of boat length. This varies depending on vessel type, age, condition, accessibility, and system complexity. Unfortunately, older boats that have not been well maintained are a surveyor’s worst nightmare. They require significantly more time to inspect and more time to document findings in the report. Since most surveyors charge on a per-foot basis, the time required can increase substantially with no change in cost to the client.
Hire A Surveyor Familiar With Your Type Of Vessel
This seems obvious, but it’s worth noting. If you are buying a motoryacht or trawler → hire a surveyor experienced with those systems. If you are buying asailboat → hire a surveyor with a sailing background who understands rig loads, keel structures, chainplates, and sailing-specific stresses
A surveyor who primarily inspects powerboats may miss important sailing-related issues, and vice versa.
Surveyor Qualifications In Different Countries
Surveyor qualifications vary widely outside the United States. There is no universal global standard.
The best thing you can do as a buyer is to:
- Contact your insurance company or lender first
- Ask what surveyor qualifications are required for report acceptance
- Then begin your surveyor search
This avoids the expensive mistake of paying for a survey that later gets rejected by underwriters.
Final Thoughts
- A marine survey is not a formality. It is one of the most important steps in buying a yacht.
- Credentials matter — but character, motivation, experience, and thoroughness matter just as much.
- Choose a surveyor who takes their time, inspects deeply, communicates clearly, and works exclusively in your best interest.
