WINTERISING TOP SELLERS

Popular marine products to help prepare, maintain and protect your boat, engine and onboard systems throughout the winter.

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Everything You Need to Winterise Your Boat

Shop our complete range of marine and boat winterisation products to help protect, maintain and care for your boat, engine and onboard systems throughout the colder months. Use the filters to narrow the range by product type, brand, application or specification.

Planning Repairs This Winter? Explore Repair & Maintenance Parts

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Preparing Your Boat for Winter

A good winterisation routine requires a little more thought than simply covering the boat and leaving it until spring. Engines, fuel systems, cooling systems, batteries, exterior surfaces and onboard systems can all benefit from attention before a boat is left unused for an extended period.

The exact process will depend on your boat, engine and how it will be stored, but there are several areas worth checking before winter sets in.

Protect the Engine

Before extended storage, carry out the maintenance recommended for your engine and check the systems most likely to be affected by long periods of inactivity.

Depending on the engine, this may involve changing fluids and lubricants, flushing cooling passages, protecting internal engine components, treating external surfaces against corrosion or using fogging oil where appropriate.

Fogging oil is intended to prevent corrosion during extended storage and make restarting easier afterwards.

Look After the Fuel System

Fuel can cause problems when left for long periods, particularly if the boat is going to remain unused throughout winter.

Fuel stabilisers and suitable treatments can help maintain stored fuel, while injector, carburettor and tank-cleaning products can form part of the wider maintenance process.

Always follow the recommendations for your engine and fuel system.

Check Cooling Systems

Cooling systems deserve particular attention as temperatures fall.

Check coolant condition, cooling circuits and any system containing water that could be affected by low temperatures. Use products that are compatible with the specific system you're servicing and follow the manufacturer's guidance.

Protect Against Corrosion

Marine environments are hard on metal components even when the boat isn't being used.

Protective sprays, marine grease, suitable lubricants and corrosion-prevention products can help protect exposed components, electrical connections and moving parts during storage.

Protecting the Rest of Your Boat

Winter preparation doesn't stop at the engine.

Clean Before Storage

Salt, dirt, marine growth and surface contamination are much easier to deal with before a boat is left for several months.

Give the hull, deck, fittings, windows and other surfaces a proper clean and deal with any areas that need polishing, protection or repair.

Cover and Protect

If your boat or engine will be exposed during storage, suitable covers can help protect against weather, UV, dirt and debris.

Choose the correct size and type of cover for the boat, console or outboard you're protecting.

Take Care of Onboard Systems

Water, sanitation and holding-tank systems can also require attention before a boat is laid up.

Clean and maintain these systems as required and make sure anything vulnerable to colder conditions has been dealt with before the boat is left unattended.

Protect your engine

A set of winter boating accessories and cleaning supplies arranged on a snow-covered wooden dock next to a marina with boats and masts in the background. The set includes a black bucket, white and blue bottles, a folded gray cover, black gloves, a blue-and-brown brush, and a coiled black rope.

Get Your Boat Ready for Winter

From engine protection to covers, cleaning products and fuel treatments, find the marine maintenance products you need in one place.

Look After Your Boat This Winter

All of the different ways you can prepare for the winter season this year.

Engine Winterisation

Protect your engine during extended periods of storage.

Shop fogging oils, engine protectors, flushing and descaling products, corrosion protection and other products designed for seasonal engine maintenance.

Shop Engine Winterisation

Fuel Care & Stabilisers

Help keep stored fuel and fuel systems protected through winter.

Explore marine fuel stabilisers, injector and carburettor cleaners, tank treatments and additives for petrol and diesel systems.

Shop Fuel Care

Antifreeze & Coolants

Prepare cooling systems for colder conditions.

Find marine antifreeze, coolants and related products for maintaining cooling systems during seasonal servicing and winter storage.

Shop Antifreeze & Coolants

Covers & Protection

Keep your boat, engine and equipment protected from the elements.

Browse boat covers, outboard covers, console covers and protective equipment for boats stored ashore or exposed throughout winter.

Shop Covers & Protection

Oils, Lubricants & Grease

Carry out essential maintenance before your boat is laid up.

Shop marine engine oils, transmission oils, hydraulic fluids, marine grease and application tools for routine servicing and seasonal maintenance.

Shop Lubricants

Sanitation & Tank Care

Leave onboard systems clean and ready for storage.

Find holding-tank cleaners, deodorising treatments, drain cleaners and other products for maintaining sanitation systems during lay-up.

Shop Sanitation & Tank Care

Cleaning & Polishing

Clean, protect and prepare your boat before storage.

Explore marine brushes, cleaning equipment, polishing pads, cloths, sponges and maintenance products for hulls, decks, windows and onboard surfaces.

Shop Cleaning & Polishing

Making Repairs This Winter?

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Winter Care and Preparation Guides

Not sure where to start? Explore our practical guides covering winter storage, engine maintenance and seasonal boat care.

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Boat Winter Care and Preparation FAQs

Find answers to the most common questions people ask about looking after their boat when the season draws to an end and the threat of frost starts to creep in.

What does winterising a boat involve?

Winterising involves preparing a boat and its systems for a period of reduced use or storage. Depending on the boat, this can include engine maintenance, fuel treatment, coolant checks, cleaning, corrosion protection, sanitation maintenance and covering exposed equipment.

When should I winterise my boat?

Most owners carry out winter preparation once regular boating has finished for the season and before colder weather arrives. The best timing depends on how and where your boat is stored and whether you'll continue using it through winter.

Do I need to winterise my boat in the UK?

Even where severe freezing temperatures are uncommon, long periods of inactivity, moisture, corrosion and colder weather can still affect marine systems. The level of preparation required depends on your boat, engine, location and storage arrangements.

Should I use fuel stabiliser during winter storage?

Fuel stabilisers are intended for periods when fuel will remain stored for an extended time. Whether one is appropriate will depend on the fuel, engine and storage conditions, so always check the instructions and your engine manufacturer's recommendations.

What is fogging oil used for?

Fogging oil is used in some engines to help protect internal engine components against corrosion during extended periods of storage.

Should I change my engine oil before winter?

Many owners include oil and lubricant servicing as part of seasonal maintenance, but service intervals and lubricant requirements vary by engine. Follow the servicing schedule and specifications given by the engine manufacturer.

Do I need to cover my boat during winter?

That depends on where and how the boat is stored. A suitable cover can help protect exposed surfaces from weather, UV, dust and debris during periods when the boat isn't being used.

Can I winterise my boat myself?

Some routine winter maintenance can be carried out by experienced owners, while other work may be better handled by a marine engineer. Always follow the instructions for your specific engine, boat and onboard systems.