Avoid a $5,000 mistake on your next used boat.
HullCheck reads the listing and the photos, then hands you a mechanic-grade inspection report, a fair-value range, and a negotiation script you can read off your phone — all in under a minute.
No credit card. Your first report is on us — negotiate with confidence.
Gelcoat crazing along starboard chine — typical of trailer hits.
Engine hours high for year; ask for service records since 2021.
Electronics package upgraded 2023 — adds ~$3.2k of value.
How it works
Three steps between you and a confident decision.
- 01
Paste the listing
Drop in the URL or copy the seller's description, year, make, model, hours and asking price.
- 02
We analyze the photos
Our model inspects every photo for gelcoat cracks, blistering, corrosion, stringer issues, and tell-tale neglect.
- 03
Get your report
A mechanic-grade write-up with a fair market range, red flags, negotiation points, and a clear verdict.
Negotiate with confidence — not a hunch.
Every report grades the hull, engine, electrical, rigging and trailer, then hands you the exact numbers and lines to use with the seller — so you don't pay $5,000 over comps or miss a cracked stringer in the walkthrough.
- Fair market range from comparable sold listings.
- Photo-by-photo red flags with mechanic context.
- A copy-ready negotiation script to use with the seller.
Gelcoat crazing along starboard chine — typical of trailer hits.
Engine hours high for year; ask for service records since 2021.
Electronics package upgraded 2023 — adds ~$3.2k of value.
Trusted by buyers shopping on
"Saved me from a $52k mistake. The report caught a cracked stringer the seller forgot to mention."
"Felt like having a marine mechanic in my pocket while scrolling listings on a Sunday night."
"Used the negotiation points verbatim. Seller dropped $3,800 without blinking."
Boat-buying guides
Five-minute reads and free tools to help you shop smarter — before you ever paste a listing into HullCheck.
Inspection
DIY Boat Inspection Checklist
Walk through hull, engine, electrical, and safety gear in 30 minutes — and filter out bad boats before you pay a surveyor.
ReadNegotiation
Used Boat Price Negotiation Playbook
How to anchor low, use comps, and turn red flags into dollar-for-dollar deductions on the asking price.
ReadEngines
Outboard Engine Hours, Explained
What's high, what's low, and how engine hours should change what you pay — by engine family and year.
ReadHulls
Boat Hull Types, Explained
Deep-V, modified-V, catamaran, and flat — what each hull is good at, and which one fits how you'll actually use the boat.
ReadDon't wire a deposit on a hunch.
One bad weekend at the marina can cost more than a used car. Run the listing through HullCheck and walk in knowing exactly what it's worth — and what to say.