Owning a yacht means treating yourself to a lifestyle that combines luxury and freedom. But between seasons, inactivity and bad weather can threaten the value of this precious asset. Yacht winterization is not just a formality: it is an essential step in preserving your investment and preparing for the next season with peace of mind.
Without proper maintenance, moisture, frost, and salt cause corrosion, cracks, and damage to equipment. Entrusting this delicate phase to experts such as JMA Yachting guarantees the safety and longevity of your vessel.
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Winter storage protects your yacht's structure and systems from harsh weather conditions. According to OMV, moisture and salt promote corrosion, while temperature fluctuations and freezing temperatures damage water systems and engines. Cold weather and bad weather can also weaken the hull, electrical systems, and tanks. Servicing your boat before winter is essential to avoid costly repairs in the spring.
Winter maintenance extends the life of your boat and optimizes its performance. By cleaning the hull, applying antifouling, and checking the anodes, you prevent the growth of parasites and corrosion. An engine that has been flushed, drained, and protected against freezing will start on the first try when the warm weather returns. For owners who charter their yachts, a well-maintained boat attracts more customers, improves profitability, and reduces long-term maintenance costs.
Winter storage reduces the risk of damage. Before winter, it is recommended that you disconnect and store batteries in a dry place, check electrical circuits, and lubricate connections. Deploying a protective tarpaulin and checking moorings or grounding will limit damage caused by wind, rain, or snow. Finally, take advantage of this period to inspect and replace safety equipment (life jackets, fire extinguishers, flares) to ensure a smooth return to sailing.


Thorough cleaning is the first step to successful winterization. This involves removing algae, salt, and dirt from the hull and deck, washing the sails, and storing textiles in a dry place. Then protect sensitive surfaces with marine wax and covers. This preventive work preserves the paintwork and upholstery.
The engine is particularly vulnerable during periods of inactivity. Before winter, you should:
- Flush the cooling system with fresh water to remove salt and sediment.
- Drain the oil and change the filter to prevent corrosion of internal components.
- Add antifreeze to protect the pipes from freezing.
- Lubricate moving parts and the propeller to prevent wear and corrosion.
- Disconnect and charge the batteries periodically to maintain their capacity.
These steps will ensure that the engine and equipment are ready to go in the spring.
Freshwater tanks and sanitary facilities must be drained to prevent pipes from bursting when the water freezes. Using a non-toxic antifreeze designed for water systems protects the installations. Don't forget to rinse and disinfect the tanks in the spring before setting off again.
Winter care allows you to examine the hull, identify cracks, and check the condition of the antifouling. Winter is the ideal time for this operation, as cold water limits the growth of algae. By cleaning and sanding the hull, then applying a new coat of antifouling, you reduce the risk of corrosion and premature wear.
Depending on the size and type of vessel, there are several storage options available:
Winter storage afloat: the yacht remains in the water in a secure marina. This option is economical but requires regular monitoring of moorings and drainage.
Winter storage on land: the boat is taken out of the water and stored on cradles or a trailer. This reduces the risks associated with freezing and corrosion. Check the wedges and grease the moving parts of the trolley.
Indoor winter storage: for optimal protection against the elements, high-value yachts are stored in a hangar. This high-end solution protects finishes and sensitive equipment.
Whichever option you choose, protect your boat with a fitted cover that allows for adequate ventilation.


At JMA Yachting, we understand the value of your yacht. Our teams of qualified technicians carry out every stage of winterization in accordance with marine standards: professional cleaning, nautical maintenance, and comprehensive engine diagnostics. The intervention of specialists reduces the risk of damage and extends the life of your vessel.
By scheduling a complete winterization with JMA Yachting, you preserve the value of your yacht and facilitate preparation for sailing in the spring. Our services include safety equipment checks, annual tax management, and administrative formalities if you plan to rent or sell your vessel. We also offer recommissioning packages for a stress-free return to service.
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