Top Boat Surveying & Inspection Pros

Most certified marine surveyors charge between $20 and $35 per foot of vessel length, so a 35-foot boat survey typically costs between $700 and $1,200. Additional fees may apply for sea trials, engine surveys, haulout coordination, or specialized equipment inspections. The total marine survey cost depends on vessel size, type, age, and the full scope of the inspection.

A pre-purchase boat survey covers the hull, deck, structural components, electrical systems, fuel systems, bilge, safety equipment, and all accessible mechanical systems. The surveyor checks for moisture intrusion, osmotic blistering, deferred maintenance, and signs of prior damage or repair. Most pre-purchase inspections also include a sea trial to evaluate engine performance, steering, and handling under power.

Most insurance companies require a marine survey for boats over 10 years old or valued above a threshold, typically $20,000 or more. An insurance marine survey establishes the agreed hull value and confirms the vessel meets minimum safety and seaworthiness standards required for coverage. Without a current survey on file, insurers may decline coverage, limit the policy, or reduce a claim payout.

Boatwork.co connects boat owners and buyers with credentialed local marine surveyors across the United States, making it easy to compare professionals and request quotes. Look specifically for surveyors accredited by SAMS (Society of Accredited Marine Surveyors) or NAMS (National Association of Marine Surveyors), as these credentials require rigorous training and professional standards. Always verify active accreditation, ask for experience with your vessel type, and review a sample survey report before hiring.

A boat survey is a comprehensive physical inspection of the vessel's condition, safety systems, and seaworthiness, while an appraisal focuses primarily on determining fair market value. Many certified marine surveyors can provide both as part of the same engagement, delivering a condition report alongside a valuation. Lenders and insurance companies typically require a full survey rather than a standalone appraisal.

Most pre-purchase and insurance surveys require an out-of-water hull inspection so the surveyor can examine the full bottom, keel, running gear, through-hulls, and propeller. In-water surveys are available for limited damage assessments but provide significantly less information than a haul-out inspection. Haulout fees are typically the responsibility of the buyer or boat owner and are arranged separately with a boatyard.

A typical marine survey for a mid-size boat takes between three and eight hours, depending on vessel size, complexity, and overall condition. Larger vessels such as sailing yachts, catamarans, or older wooden boats may require a full day or more to inspect thoroughly. The written survey report is generally delivered within three to five business days after the on-site inspection is completed.

A marine survey does not technically pass or fail — it produces a detailed condition report that documents deficiencies, defects, and recommended repairs. However, a surveyor may conclude that a vessel is not seaworthy or does not meet the minimum standards required for insurance coverage or financing. Buyers can use survey findings to negotiate repairs, request a price reduction, or walk away from a purchase entirely.

In nearly all cases, the buyer pays for the pre-purchase boat survey and any associated haulout costs, since the inspection is conducted on their behalf before completing the transaction. Sellers occasionally commission their own survey in advance to support a listing price and demonstrate transparency to prospective buyers. Insurance surveys are always the responsibility of the boat owner seeking coverage.

Look for a marine surveyor who holds active accreditation from SAMS or NAMS and has documented experience with your specific vessel type, whether it is a powerboat, sailing yacht, catamaran, or trawler. Ask for references from recent clients, request a sample survey report to evaluate thoroughness and format, and confirm that the surveyor carries professional liability insurance. A qualified surveyor should be transparent about what the inspection covers and willing to answer questions before and after the report is delivered.