Fix it yourself.
Save the shop bill.
BoatMend keeps your boat's maintenance on track, walks you through the repair step by step, and gives you an AI Mechanic that knows your engine. For every boat, from a jon boat to a diesel yacht.
AI boat apps charge up to $399 a year per boat for answers backed by manuals. A shop winterization runs $500+.
My garage
“Reel Therapy” · 21' Center console
Lower unit oil
Yamaha F150 · 198 h
Water pump impeller
Yamaha F150 · 198 h
Winterize engine
Seasonal
AI Mechanic
Your last impeller change was 26 months ago. With a weak tell-tale stream, start there. Here's the 6-step check…
Source: BoatMend guide “Engine overheating” · your service log
Why DIY
Marine shops charge $100–150 an hour. And the wait is weeks.
Most boat maintenance repeats every season. Do it once with a good guide and you can do it every year.
Winterize an outboard
At the shop: $300–500+
With BoatMend: Parts and fluids only
Lower unit oil change
At the shop: $100–200
With BoatMend: About 30 minutes
Water pump impeller
At the shop: $250–500
With BoatMend: A kit and an afternoon
Typical US shop prices; they vary by region and engine.
The guide library
459 step-by-step guides, and growing
Free to preview. Each one lists the tools, parts, time and what a shop would charge, with official references.
Everything in one place
Your boat's logbook, mechanic and manual shelf
Your garage
Every boat you own with its engines, serial numbers, HIN and gear like generators, A/C and bilge pumps.
Plan by hours or date
Add an engine and get its maintenance plan automatically. Each task is due by engine hours or months, whichever comes first.
Reminders that matter
Email reminders before a service is due, plus a spring commissioning nudge in March and a winterizing nudge in October.
Service log
Record what you did, at how many hours, the parts and cost, with photos. A clean history also helps when you sell.
Step-by-step guides
Plain-English repair and maintenance guides with tools, parts, time, difficulty and checkboxes you tick as you go.
Official manual finder
We point you to your manufacturer's free owner's manual and tell you which serial number or ID you need to find it.
Upload your manual
Drop in the PDF of your own engine's manual. It stays private to your account and the AI Mechanic reads it for you.
AI Mechanic
Ask anything about your boat. It knows your engine, its hours and its service history, and it shows where each answer comes from.
AI Mechanic
Answers about your engine, not engines in general
It reads your boat profile, hours and service history first, then our guides and your own manual. Every answer shows its sources.
AI Mechanic
2019 Mercury 115 FourStroke · 312 hThrottle back to idle and head in slowly if the temperature drops. If the alarm stays on, shut it down. Then check these, easiest first:
- Clear the tell-tale outlet with a small wire or zip tie. A clogged hole is the most common cause of a weak stream.
- Look for weeds or a plastic bag on the lower unit water intake screens.
- Your service log shows the impeller was last replaced at 96 hours, about 3 seasons ago. That's beyond the typical interval, so it's a likely suspect.
Sources
BoatMend guide: Engine overheating · BoatMend guide: Replace the water pump impeller · Your service log
Up and running in 5 minutes
- 1
Add your boat
Pick the boat type, then add each engine with its make, model, year and hours.
- 2
Get your plan
BoatMend builds the maintenance plan for your engines and tells you what's due first.
- 3
Fix it, log it
Follow the guide or ask the AI Mechanic, tick the steps, and log the job. The next due date updates itself.
Pricing
Pay once. Own it for good.
One price for every boat you own. No monthly fee, ever.
Marine shop
$100–150
per hour of labor
- Weeks of wait in season
- $500+ for a winterization
BoatMend Lifetime
$34.90
once · lifetime access
- Unlimited boats and engines
- Automatic maintenance plan by hours or date
- Email reminders + seasonal checklists
- Service log with photos
- 459+ step-by-step guides, plus every new one
- Official manual finder + upload your own PDF
- AI Mechanic that knows your boat
14-day money-back guarantee
Subscription AI boat apps
$399
per boat, per year, for manual-backed AI
- Or $39 per boat, every month
- One question at a time, no chat history
- Built for yacht crews and fleets
FAQ
Questions owners ask
Is it really a one-time payment?
Yes. You pay $34.90 once and keep access for the life of the product, including new guides and features. No subscription, no renewal.
Which boats and engines does it cover?
All of them: outboards (2- and 4-stroke), sterndrives, gas inboards, jet boats, jet skis, sailboats with auxiliary diesels, and yachts with diesel engines and generators. Add as many boats as you own.
How is the AI Mechanic different from a regular chatbot?
It answers using your boat's details (make, model, year, hours and service history), our own repair guides and the manual you uploaded, and it tells you which source each answer came from. When it only has general knowledge, it says so.
Will it give me torque specs and part numbers?
Only when they come from a source it can show you, like the manual you uploaded. It will never guess a spec. If it doesn't know, it tells you where in the official manual to look.
Do you sell or host the manufacturer manuals?
No. Manufacturers like Mercury, Yamaha, Suzuki and Honda publish owner's manuals for free. We link you to the official page and show you how to find yours. Our guides are written by us.
Can it replace my marine mechanic?
No, and it doesn't try to. It helps you handle routine jobs and simple fixes yourself and tells you when to stop and call a pro, especially for fuel leaks, gas smell, carbon monoxide, high-current electrical work or water coming in.
Does it work on my phone at the dock?
Yes. BoatMend is built for phones first, with big buttons and readable text in the sun, and you can install it on your home screen like an app.
What if it's not for me?
You're covered by a 14-day money-back guarantee. See the refund policy for details.
Your next shop bill pays for BoatMend ten times over.
One payment, every boat, every season.
Not sure yet? Preview the guides.