A marine survey is the boat world's version of a home inspection plus an appraisal, done by an independent professional who has no stake in whether you buy. For most used boats it is the single best money you can spend before sending a wire. This guide covers what a survey actually checks, what it costs in BC in 2026, the different types, and how to fit one into a short online-auction timeline without panicking.
What a marine survey actually is
A surveyor is hired by you, paid by you, and reports to you. That independence is the whole point: a broker wants the deal closed and a seller wants top dollar, but the surveyor's only job is to write down what the boat is, honestly, in a document you can act on.
The deliverable is a written report with photos that lists the boat's condition system by system, flags deficiencies by severity, estimates a fair market value, and often a replacement value. Lenders and insurers read this report directly, so it is not just for you. Insurers often ask for a recent survey before they cover an older boat, and lenders commonly want one before they fund a loan.
One thing a survey is not: a warranty. A surveyor inspects what is visible and testable on the day. They do not pull the engine apart or open up a cored deck. A good report tells you the boat's real condition and the questions still worth asking — it does not promise nothing will ever break.
The main types of survey
Not every survey is the same scope, and ordering the wrong one wastes money.
- Pre-purchase survey — the comprehensive one, and the one you want when buying. Often called a "condition and value" (C&V) survey when done for a purchase, it covers the hull, structure, systems, safety gear, and almost always includes a sea trial and a haul-out so the surveyor can see the bottom. This is the gold standard before you buy.
- Insurance survey — narrower. It establishes the boat's condition and a value figure for an insurer, with emphasis on safety hazards. It generally skips the sea trial and haul-out. Many policies require a fresh one every few years on older boats.
- Appraisal survey — focused purely on value, used for estate settlements, donations, financing, or disputes. Lighter than a C&V on the deep mechanical inspection.
- Damage survey — done after a grounding, fire, or storm to document damage, recommend repairs, and determine probable cause, usually for an insurance claim.
For an auction purchase, "pre-purchase" is the answer. The others exist for different jobs.
What a surveyor checks
A thorough pre-purchase survey covers far more than "does it float." Expect the surveyor to work through:
- Hull and structure — moisture readings across the hull and deck, percussion testing (tapping for soft spots and delamination), blisters below the waterline, stringers, bulkheads, the transom, and core condition around fittings.
- Through-hulls and plumbing — seacocks that actually open and close, hoses, double clamps, bilge pumps, and signs of leaks or corrosion.
- Electrical — wiring against ABYC standards, the battery setup, the panel, corrosion, shore-power connection, and galvanic protection (anodes/zincs).
- Fuel system — tanks, lines, fittings, and ventilation — a common and dangerous failure point on older boats.
- Steering and controls — play, leaks in hydraulic systems, cable condition, throttle and shift function.
- Safety equipment — life jackets, fire extinguishers (and current dates), flares, navigation lights, horn, and CO detectors.
- Engine — to a point. A standard surveyor gives a general operational assessment but usually is not a diesel or outboard mechanic. For an expensive or high-hour engine, pay a separate engine surveyor or marine mechanic. They can do a compression or borescope check that the hull surveyor will not. Many surveyors can also send an oil sample to a lab for an extra fee.
The sea trial and haul-out
These two events are why a real pre-purchase survey takes most of a day and is worth it.
A sea trial is the boat run under power, ideally to wide-open throttle, with the surveyor aboard. It reveals things a static inspection can't: overheating, vibration, a transmission that won't hold, steering that wanders, an engine that won't reach rated RPM (a sign of a tired motor or fouled bottom). The surveyor watches handling, shifting, steering response, noise, and any water ingress under load. On a sailboat, the rig and sails get exercised here too.
A haul-out lifts the boat so the surveyor can see and sound the bottom — the most expensive part of a hull to repair and the part you can never see in the water. Blisters, prior repairs, keel-to-hull joints, running gear, and the rudder all live below the waterline.
Both add cost (haul-out is typically a separate yard fee), and both require coordination with the seller or marina. On a trailerable boat, the haul-out is easy — it's already on a trailer — which is one quiet advantage of the smaller enthusiast boats this guide focuses on.
What it costs in BC in 2026
Marine surveys are priced per foot of length. Published rates from BC surveyors run roughly $23 to $36 per foot for a pre-purchase survey, plus GST. Most also set a minimum fee around $550, so a small boat hits that floor no matter the math. Few surveyors publish rates, so treat these as a guide and get a written quote.
Rough by-size estimates for the survey itself, in CAD before GST:
| Boat length | Typical pre-purchase survey |
|---|---|
| 20 ft | ~$550–$700 (often the minimum fee) |
| 25 ft | ~$575–$850 |
| 35 ft | ~$800–$1,200 |
| 45 ft | ~$1,000–$1,550 |
Add-ons stack on top:
- Haul-out: a short inspection lift at two BC marinas in 2026 costs about $260–$270 for a 30-footer and $500–$580 for a 45-footer, plus GST (paid to the yard, not the surveyor)
- Sea trial: some surveyors include it; others charge extra
- Engine survey / fluid analysis: a mechanic's engine survey is quoted separately; one Vancouver-area surveyor charges $65 to analyze a fluid sample
- Travel: if the boat is outside the surveyor's area, expect a mileage or trip charge
All-in, a 35-footer lands roughly $1,150–$1,600 plus GST once a short haul-out is included. For a trailerable boat in the $15k–$75k range, you'll often pay around $550–$700 because the haul-out is free (it's on its trailer) and the boat is small. Against a five-figure purchase, that is cheap insurance. Insurance surveys are sometimes priced a little lower per foot because they're narrower in scope.
Hire an accredited surveyor
The title "marine surveyor" on a business card tells you very little on its own. Look for a SAMS AMS (Accredited Marine Surveyor) or a NAMS-CMS (Certified Marine Surveyor). Both require at least five years of surveying experience, a written exam, and continuing education. Check with your insurer and lender before you book. Some only accept reports from accredited surveyors, and a rejected report means paying twice.
Always hire your own surveyor. Never use one the seller or broker hands you — the independence is the value.
How a survey protects an online auction buyer
The fear with buying a boat online is obvious: you can't walk the dock and tap the hull yourself. A survey closes that gap. It puts a credentialed, independent professional physically on the boat, on your behalf, before any money changes hands.
On Yachts & Bids, this is built into the process rather than left to chance. Every listing already requires honest specs and a mandatory Known Flaws section, so you start from disclosure, not a sales pitch. After the auction ends, there is a structured inspection window in which you arrange your own marine survey and sea trial before funds are released. We are a neutral venue — we never touch the purchase price. That money moves from buyer to seller only through a licensed marine escrow and title partner, so the survey can do its job during escrow, exactly when it matters.
Practical sequence for an auction buyer:
- Before bidding, read the listing, the Known Flaws section, and the HIN history so you bid on a known quantity.
- The moment you win, line up an accredited surveyor near the boat — good ones book out, so call early in the inspection window.
- Attend if you can, or join the sea trial by video. Ask the surveyor what they would still want checked.
- Use the report to confirm value, settle on repairs, or — if something major surfaced that wasn't disclosed — to act under the platform's terms.
The survey isn't there to find reasons to kill the deal. It's there so the boat you wired money for is the boat you bid on. Pair it with a clear understanding of title types and a realistic transport budget, and a long-distance purchase becomes about as safe as buying down the street.
One survey fee and one phone call can be the difference between owning a boat and owning a problem. On any used boat worth five figures, get the survey.