Winterising your boat is a crucial step in protecting your investment from harsh weather conditions, freezing temperatures, and potential damage. Whether you’re a first-time boat owner or a seasoned sailor, this guide will walk you through the essential steps to winterise your boat properly.
Why Winterising Your Boat is Important
Leaving your boat unprepared for winter can lead to costly repairs. Freezing temperatures can cause:
- Engine damage (cracked blocks due to frozen water)
- Hull and plumbing issues (burst pipes, damaged fittings)
- Mould and mildew growth (from trapped moisture)
- Battery drainage and corrosion
By following a proper winterisation routine, you can extend your boat’s lifespan and ensure it’s ready for the next boating season.
Step-by-Step Guide to Winterising Your Boat
1. Clean and Prepare Your Boat
- Remove all valuables, electronics, and perishables
- Wash and dry the hull, deck, and interior to prevent mould
- Check for any damage (cracks, leaks, or wear)
2. Protect the Engine and Fuel System
- Change the oil and oil filter to remove contaminants
- Flush the cooling system with fresh water (for inboard engines)
- Add fuel stabiliser to prevent ethanol separation and corrosion
- Fog the engine (spray fogging oil into the cylinders to prevent rust)
3. Winterise Plumbing and Water Systems
- Drain all water tanks, pipes, and pumps
- Use non-toxic antifreeze in plumbing systems to prevent freezing
- Disconnect and store hoses
4. Maintain the Battery
- Disconnect and remove the battery
- Store in a cool, dry place and keep it charged with a maintenance charger
5. Cover and Store Your Boat
- Use a high-quality, breathable boat cover to prevent moisture buildup
- Store in a dry, sheltered location (marina storage, boatyard, or indoors if possible)
- If leaving in water, ensure bilge pumps are working and check regularly
Bonus Tips for Extra Protection
- Inspect and lubricate moving parts (steering, throttle, hinges)
- Check and repair seals and gaskets to prevent leaks
- Place moisture absorbers inside cabins to reduce dampness
How to Winterise an Outboard in 5 minutes
How to Winterise a Boat
Final Thoughts
Properly winterising your boat ensures it stays in top condition during the off-season and avoids expensive repairs. By following these steps, you’ll protect your vessel from freezing temperatures, moisture damage, and corrosion.
Need professional help? Many marinas and boatyards offer winterisation services—consider booking one for peace of mind. Sutton Staithe is one that springs to mind as it is near to us. As for Rob for Jan, tell them you are from DBC and they might give you a discount if you are a paid-up member.
If you require any assistance with this article, please do not hesitate to Contact Us