Regular maintenance is the difference between a yacht that provides decades of reliable service and one that becomes a money pit. Whether you own a 30-foot daysailer or a 80-foot motor yacht, this comprehensive maintenance checklist covers every task you need to keep your vessel in peak condition.
Before Every Trip (Pre-Departure Check)
- Check engine oil and coolant levels
- Inspect bilge for water or fuel
- Test bilge pump operation
- Check battery voltage
- Verify fuel level and check for leaks
- Test navigation lights and horn
- Check steering system for smooth operation
- Verify safety equipment is onboard and accessible
- Check weather forecast and tide tables
Monthly Maintenance
Engine Room
- Check engine oil level and condition (look for milky appearance indicating water contamination)
- Inspect coolant level and concentration
- Check transmission fluid
- Inspect all belts for cracks and tension
- Clean raw water strainer
- Check exhaust system for leaks or corrosion
- Inspect fuel lines and filters for leaks
Hull & Deck
- Wash down hull and deck with fresh water
- Inspect hull for cracks, blisters, or damage
- Check zinc anodes — replace if more than 50% consumed
- Inspect through-hull fittings and seacocks — operate each one
- Check propeller for fishing line缠绕 and damage
- Inspect cleats, stanchions, and railings for loose fasteners
Seasonal Maintenance (Spring)
Engine Service
- Change engine oil and oil filter
- Replace fuel filter(s)
- Replace impeller (or per manufacturer hours)
- Check and adjust valve clearance (per service interval)
- Test engine alarms and automatic shutdown systems
- Grease all fittings per manufacturer schedule
Hull Service
- Pressure wash hull bottom
- Inspect antifouling paint — sand and repaint if needed
- Replace all zinc anodes
- Inspect and lubricate rudder bearings
- Check shaft alignment and cutless bearing wear
- Inspect and repack shaft stuffing box
Annual Maintenance (Haul-Out)
- Full hull inspection — check for osmotic blistering
- Apply new antifouling paint coat
- Inspect and service propeller (remove, clean, balance)
- Check rudder for water intrusion (tap test)
- Inspect trim tabs and hydraulic cylinders
- Service all seacocks — disassemble, clean, lubricate
- Load test all batteries — replace if below 80% capacity
- Inspect all electrical connections for corrosion
Antifouling Paint Schedule
Antifouling paint typically lasts 1-2 years depending on the product and water conditions. Hard antifouling lasts longer but requires sanding between coats. Ablative antifouling wears away naturally and can be overcoated without sanding. Choose based on your usage pattern and local marine growth conditions.
Sailing Yacht Specific Tasks
- Inspect standing rigging for broken strands and cracked swages
- Check turnbuckles and cotter pins
- Inspect sails for UV damage, torn stitching, stretched panels
- Service all winches — disassemble, clean, lubricate
- Check mast step for corrosion and water intrusion
- Inspect boom vang and traveler systems
- Check halyards and sheets for chafe — replace as needed
Winterization (Cold Climate)
- Drain all freshwater systems or add non-toxic antifreeze
- Fog engine cylinders with fogging oil
- Remove batteries — store in warm, dry location on trickle charger
- Empty and clean holding tank
- Remove all perishables and valuables
- Install yacht cover or shrink wrap
- Place moisture absorbers in cabin
- Arrange for weekly checks during storage
Maintenance Record Keeping
Keep a detailed maintenance log for every task performed. This serves multiple purposes:
- Tracks service intervals and prevents missed maintenance
- Increases resale value — documented maintenance history is a strong selling point
- Helps diagnose recurring problems
- Required by some insurance policies
For a deeper dive into maintenance costs, see our yacht cost breakdown. For insurance advice, check our insurance guide.
Protect Your Investment
Regular maintenance preserves your yacht's value and ensures safe, enjoyable cruising.
Full Maintenance Guide