Top 10 jobs to do on your dinghy over winter

Written by Christian Brewer

Kneeling next to the small boat, they diligently scrubbed it with a brush as part of regular dinghy maintenance, using soapy water from a nearby bucket.

Essential maintenance tips to keep your boat in top shape for spring sailing

Winter is the perfect time to give your dinghy the care and attention it deserves. A few hours of maintenance now can save you time, money, and frustration come spring — and keep your boat performing at its best.

Here are ten essential jobs to tackle before the weather turns too cold.

1. Wash hull and rig

Give your boat a thorough detergent wash before storing away over winter, you want to remove as much sea salt as possible from the inside and outside then give her a good hose down or jet wash with fresh water. Flush the spars both inside and out, especially around fittings. Pick a good drying day and sponge or leather off excess water.

Pay particular attention to all the fixed moving parts, giving them a thorough flush through to stop corrosion from taking hold over winter.

A person sits in a small sailboat with a
A person is seated on a small sailboat with a large sail against a plain black background, evoking the importance of dinghy insurance for such serene adventures.

2. Wash control lines

Remove all your control lines and wash in a sink or bucket with mild detergent, followed by a fresh water rinse.  Once dried, inspect for wear and tear, and make sure you can still see your rope markers so that you are on the same settings next season. Store in a dry location and mark them up if you need to.

3. Wash sails

Give your sails a thorough rinse with a hose pipe, using a mild detergent to remove any stains. Hang up to dry fully either on the dinghy or on a washing line and then store in a dry location such as a loft. If storing in a shed or garage outside, consider a sealed plastic sleeve to prevent rodent damage.

A simple black and white drawing of a sailboat with three people onboard, including one steering and two seated—an ideal image for illustrating the importance of dinghy insurance.
Two people sitting on a sailboat in calm waters, with one sail raised and a plain black background, enjoying the peace of mind that comes with having Dinghy Insurance.

4. Removing rust stains and watermarks

Stubborn rust stains on gel coat or stainless fittings can be removed with a solution of oxalic acid and water. Oxalic crystals can be bought online, mix with water as per the instructions on the packaging, normally to a ratio of 1:10, and dab onto the affected area with a stiff brush, rinse off with fresh water and repeat as necessary. Always make sure you read the instructions, wear gloves and eye protection, and rinse skin quickly and thoroughly if there is contact. Oxalic acid is also great for treating bare wood areas that have gone grey with exposure to water and sunlight. Strip back the affected varnish and sand, apply the solution with a cloth, leave to soak for a short time, then rinse with fresh water and repeat as necessary.

5. Beach storage

Make sure you check your insurance if you plan on leaving your dinghy on a beach over winter – not all policies cover unattended winter storage outdoors. Always use secure tie-down points to prevent the boat from shifting in high winds. Our club has chain embedded into the beach to allow tie downs. You can make your own tie down base by submerging a couple of tyre carcasses into the beach leaving just the top quarter showing to tie down onto on both sides.

Black and white illustration of a sailboat with two people on board, sailing on calm waters, emphasizing the importance of dinghy insurance.
A person sails a well-kept single-mast sailboat, showcasing expert dinghy maintenance on open water.

6. Home storage

Ideally, store your dinghy under cover – a garage is ideal. If not available, then invest in a well-fitted cover with ground tethered tie down straps. Always make sure nothing nearby can be blown over or down onto it.

7. Dinghy maintenance

I recommend popping the tops off your cam cleats and giving them a thorough clean with mild detergent, fresh water and a dab of McLube or silicone spray when dried.  Don’t use grease or oil as this will attract salt crystals next season. Broken cam springs can be replaced and you may need new cams if you have signs of wear on the cam teeth.

Ball bearing mainsheet systems need particular attention. Flush through with fresh water and look to replace the traveller end caps for new ones if showing signs of impact damage. It’s a good time to check that you have a full compliment of ball bearings and that they are running freely.

A black-and-white illustration of two people sailing a sailboat with a large sail against a black background, highlighting the importance of dinghy insurance.
Outline of a sailboat with a visible sail and two people on it, set against a black background, perfectly captures the essence of an adventurous voyage. Consider dinghy insurance for peace of mind during your sailing adventures.

8. Rig maintenance

Look for signs of corrosion around mast fittings on aluminium masts and booms. If loose fittings are found, you may need to drill out the rivets and replace with bolts and nylon washers, secured with nyloc nuts. Be sure to use a barrier cream such as Duralac to prevent galvanic reaction between the dissimilar metals. Check your split pins and replace as necessary – you’ll thank yourself next Spring!

9. Service the trolley

Check your plastic or rubber supports on the gunwhale and keel band; one of my Laser keel supports has come loose and need attention. Typically the plastic tube can be rivetted back into place. You will need a punch to push the broken rivet through and a suitable sized rivet and washer inserted into the same hole. Check your trolley tyres and replace as necessary, I’m using hard rim tyres which give you a service life of about 8 years. If the trolley frame looks tired, clean it up and apply a coat of cold galvanising spray, making sure you key the metal surface with Scotch-Brite or a wire wool pad before spraying

Black and white illustration of a person sailing a small boat with a triangular sail labeled
Black and white illustration of two people sailing a small dinghy, highlighting dinghy maintenance on the water.

10. Service the road trailer

Finally, don’t neglect your road trailer. Whilst you should always check the lighting board to make sure all the lights working, before setting off on a journey, now is a good time to perform a more thorough check of all connections and wiring, looking for poor condition, corrosion or poor contact. Inspect the condition of the tyres and check for wheel bearing movement. If bearings are sound, grease them. If not, replace them before next season.

A final note

Taking the time to wash, check, and service your dinghy now means you’ll be ready to hit the water the moment the weather improves.

Winter can be tough on dinghies – cold temperatures, moisture, and salt residues left over from the previous season all conspire to cause damage if left unchecked. A small crack in a fitting or a worn halyard might seem minor now, but over months of inactivity, these issues can worsen unseen. Moisture trapped under covers can lead to mildew and corrosion, and unsecured boats left on beaches or open ground can easily suffer from winter gales.

By taking the time to clean, inspect, and protect your dinghy now, you’ll dramatically reduce the risk of deterioration. Fresh water washing removes corrosive salt; proper drying prevents mould; and a secure, dry storage spot keeps your boat safe from the elements. Servicing your gear also means you’ll discover and fix small problems before they become expensive repairs next spring.

Christian Brewer is a member of Whitstable Yacht Club and a former Olympic Squad and British Sailing Team member in the Tornado class.

He has won fifteen National and one European Championship in catamarans and in One Design keel boats.

A former sailmaker and charter yacht sales manager, Christian has sailed extensively in Europe, the Caribbean, Pacific, Atlantic and Indian Oceans.

A man in a red sailing suit is sitting in a small sailboat on a lake, surrounded by other sailboats on a clear day.
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