Pre-purchase boat inspection: what to check and what a survey costs

How to inspect a motor yacht before you buy: what you check yourself, what a marine surveyor does and costs in Australia, the red flags, and when to call in a specialist.

Updated 16 October 2026·8 min read·Gold Coast, Queensland

Do your own inspection first, then hire an independent marine surveyor, then run a sea trial before you sign. The inspection costs you a morning and tells you whether the boat deserves a survey. The survey is the report that lets you walk away or renegotiate. On the Gold Coast, published pre-purchase survey rates for a 50 to 59 ft motor yacht run from about $1,500 to $1,600 before extras, which is a small amount against what a bad purchase costs.

Key facts

  • Three different things — your own walk-through, the surveyor’s report, and the sea trial
  • Survey, 50 to 55 ft — $1,499 at Maritime Surveyor; 50 to 59 ft $1,600 at BoatBuy, plus $210 per engine
  • Quoted on application — from 56 ft at Maritime Surveyor, from 60 ft at BoatBuy
  • Extras — lift-out (the yard bills it), generators $210 each, oil analysis $185 to $199 a sample
  • Registration — transfer into your name within 14 days; at 15 m or longer Maritime Safety Queensland must endorse it
  • Independent — appoint your own surveyor, not the seller’s or broker’s

Inspection, survey and sea trial: three different jobs

People use these words as if they meant the same thing. They do not.

  1. Your own inspection. A walk-through with a torch, a checklist and the paperwork. It costs nothing and its job is to eliminate boats. If she fails here, you have saved a survey fee.
  2. The survey. A surveyor's written report on the whole vessel, usually with photographs. Nearly everything is inspected, covers are unscrewed and the items that could not be reached are listed as not inspected. A small patch of antifoul is removed so the surveyor can take moisture readings on a fibreglass hull.
  3. The sea trial. A test run, usually part of the survey, that shows how she steers, trims and performs under load. It can reveal handling problems, steering or trim issues and thrusters that are too small or cavitate. It has to be agreed in advance with the seller and the surveyor.

A pre-purchase survey is not an insurance survey. An insurance survey is shorter, covers the main items that decide seaworthiness and does not need a sea trial. A full pre-purchase report can often do both jobs, which is why it is the one to buy first. Check with your insurer that they will accept it.

From The Yacht Owner's KitPre-Purchase Inspection Checklist$12See it →

What to check yourself first

Do this before you pay anyone. A boat in this class, a 40 to 120 ft Sunseeker, Azimut, Pershing or Princess, comes with long service histories, and the paperwork often tells you more than the hull does.

The paperwork. - Registration and ownership. Check that the seller is the registered owner and that the registration is current. Queensland lets you check a boat’s registration online, through the Rego Check app or on 13 23 80. - Finance owing. A financier records its interest in a boat on the Personal Property Securities Register, and a search on the hull identification number shows it. Boatsonline puts that search at about $2. A boat with a security interest registered can be repossessed, so ask for the payout and discharge in writing. - Certificate of currency and claims history. A current certificate and a straight answer about past claims, groundings and repairs. - Survey history. Ask for the last survey and every report since. A boat that has been surveyed before has been checked before, and you can compare. - Service records. Engine, generator, gearbox and stabiliser services, with dates and hours, from the people who did them. Gaps matter more than hours.

The hull and deck. Look along the topsides in low light for waves, patches and mismatched gelcoat. Check the swim platform and its hydraulics, the deck fittings, the windows and hatch seals, and whether the teak has lifted. Stains on the saloon headlining or around fittings mean water is getting in.

Underwater, if she is out. Props for damage, shafts for wear and play, rudders for movement, anodes for how fast they have been used, and the through-hulls and seacocks for corrosion. If she is in the water, ask for her last haul-out record and when the running gear was last pulled.

Engines and gensets. Cold start, no smoke after the first minute, a clean engine bay with no fresh oil or coolant, and no leaking from the raw-water pumps. Look at the hour meters and ask whether they match the service records.

Electrics and systems. Shore power, batteries and chargers, air conditioning, the generator under load, thrusters, windlass, pumps, bilge alarms and navigation electronics. Turn everything on at once and listen.

Stabilisers. Fins or gyro, whichever she has. Ask when they were last serviced, and test them at the sea trial.

Worth knowing

A survey is the report. It is not a guarantee. Parts that cannot be reached, such as fuel tanks boxed in behind joinery, are listed as not inspected, and specialist items like complex electronics or carbon fibre may need a specialist. Read the exclusions page as carefully as the findings.

Red flags

What a surveyor does

A surveyor inspects the hull, structure, systems and safety gear, takes moisture readings, reviews the documents, runs the sea trial and writes a report with photographs. The published Gold Coast rates include the sea trial. In practice you also get a list of defects that you can use to negotiate or to walk away.

There is no regulation that sets minimum qualifications for calling yourself a marine surveyor, so the credentials need checking. The Australasian Institute of Marine Surveyors vets its members and assigns membership levels that reflect their experience, and you can search its database. Beyond that, ask whether they carry professional indemnity insurance, whether they have surveyed your make of boat, and for a sample report.

Engines are the common gap. Some surveyors do not inspect engines, and others only confirm they run. For big diesels, book an independent marine engineer who knows the make, ideally not the one who last serviced them. Oil analysis and a borescope inspection are the usual tools.

What a survey costs in Australia

Two Gold Coast and Brisbane firms publish their rates. These are what they say today, with GST included.

Boat length Maritime Surveyor BoatBuy
30 to 36 ft $899 $1,075 (30 to 39 ft)
37 to 43 ft $1,099 $1,075 (to 39 ft), $1,300 (40 to 49 ft)
44 to 49 ft $1,299 $1,300
50 to 55 ft $1,499 $1,600 (50 to 59 ft)
56 ft and over Quote on application $1,600 to 59 ft, then quote from 60 ft

BoatBuy adds $210 for each engine inspected, $210 per generator, $185 per oil sample and $265 per tender. Maritime Surveyor prices a marine engine oil analysis from $199 and quotes thermography, ultrasonic thickness testing, moisture meter testing and endoscope inspections on application. Maritime Surveyor’s page also lists a lower “special price” that runs to 20 December 2026. Neither page gives a price for the lift-out. That is the yard’s, so ask for a quote.

A worked example. A 55 ft twin-engine motor yacht with one generator, on BoatBuy’s published rates:

Item Cost
Survey, 50 to 59 ft, includes sea trial $1,600
Two engines at $210 $420
One generator $210
Three oil samples at $185 $555
Total before lift-out $2,785

On Maritime Surveyor’s published rates the same boat is $1,499, plus three oil analyses from $199 each, or from $2,096. The lift-out is on top. From 56 or 60 ft, up to the 120 ft end of this audience, the price is on application: ask for it in writing and ask what it includes.

Marine HQ
Looking at a boat? Send us the listing before you pay for a survey. We will tell you what to look at first and what she will cost to run here.
Call 0439 748 387

When to call a surveyor, and when to call someone else

Call a surveyor when you are serious about a boat and the seller has agreed to a survey and sea trial, so the money is spent on a boat that has passed your own inspection. Do not pay for a full survey on a boat that failed your walk-through.

Call a specialist on top when the survey leaves a question. A marine engineer for the engines and gensets, a stabiliser technician for the fins or gyro, and an electrician if the electrics are complicated. Each is a few hundred dollars and each can find a five-figure problem.

How we help

We are a yacht management company, not a surveying firm, so we do not replace the surveyor. What we do is the work around the survey. Marine HQ runs a pre-purchase consultation for buyers. We look at the listing with you before you spend anything, go through the boat with you, read the survey report and the service records against what the boat will need, and put a Gold Coast figure on each finding and on running her here. You then go back to the seller with a list that is priced, not just a list.

After you buy

Transfer the registration within 14 days. At 15 m or longer the application must be endorsed by Maritime Safety Queensland before Transport and Main Roads can process it. Insure her from the day you take delivery, and book your first haul-out. Our annual haul-out checklist is the scope to start from, and the size guide covers the running costs you are signing up for.

Questions owners ask

How much does a pre-purchase boat survey cost in Australia?

Published Gold Coast and Brisbane rates run from $1,099 for a 37 to 43 ft boat to $1,499 for 50 to 55 ft at Maritime Surveyor, and $1,300 for 40 to 49 ft and $1,600 for 50 to 59 ft at BoatBuy, which adds $210 for each engine. Both quote on application from 56 or 60 ft. Lift-out, engine and generator extras and oil analysis are on top, so ask for a written quote.

What is the difference between a survey, a sea trial and an inspection?

A survey is a surveyor’s written report on the whole vessel. A sea trial is the test run, usually part of the survey, that shows how engines, steering and systems behave under load. An inspection is whatever you do yourself or with a skilled friend or consultant to decide whether the boat deserves a survey at all.

Can I use the seller's or broker's surveyor?

You can, but you should not. A surveyor you appoint works for you. Advice from boating publications is to choose your own independent surveyor, ideally one who knows the make, and to be cautious of anyone a broker or seller pushes as preferred.

Who pays for the lift-out?

Normally the buyer pays for the lift-out and the survey, although a compromise is common if the seller needs work done while she is out of the water. Agree it in writing before the deposit, and ask the yard for a price.

Does a surveyor check the engines?

Often only to the point of starting and running them. Some surveyors do not inspect engines at all, and engine and generator work, oil analysis and compression checks are commonly priced as extras. For big diesels, book a marine engineer who knows the make, and not the person who last serviced them.

What if the seller will not allow a survey or sea trial?

Walk away. A deposit that is refundable subject to survey and sea trial is normal. A boat that cannot be lifted, run or opened up is a boat you cannot price.

Is a pre-purchase survey the same as an insurance survey?

No. A pre-purchase survey covers the whole boat and usually includes a sea trial. An insurance survey is shorter and checks the main items that decide seaworthiness. A good pre-purchase report can often satisfy the insurer too, but ask your insurer before you rely on it.

Next step

Rather have someone do this for you?

Marine HQ looks after motor yachts across the Gold Coast — the maintenance schedule, the yard, the trades, the crew and the compliance — and shows you every job and every dollar in your own MyYacht app. Tell us about your yacht and we will tell you what she needs.

Where the figures come from

Published rates and sources checked on 16 October 2026. They change — confirm with the provider before you rely on them.

  1. Maritime Surveyor (Brisbane, Gold Coast, Mooloolaba) — Survey report prices by vessel size
  2. BoatBuy — Pre-purchase marine survey prices, vessels over 30 ft
  3. BoatBuy — Pre-purchase boat inspections, Gold Coast
  4. Motor Boats Monthly — Everything you need to know about yacht surveys
  5. Practical Sailor — Pre-purchase or insurance survey: which one do I need?
  6. Trade-A-Boat — Choosing a marine surveyor
  7. Queensland Government — Register a boat (transfer of ownership, boats 15 m and over, registration checks)
  8. Boatsonline — Before you buy a boat: is there finance owing?
  9. Marine Surveyors Australia — How do I choose a marine surveyor?