Motorboat Insurance UK: Cover for Motor Cruisers and Sports Boats

How motorboat cover is usually structured

Hull and machinery cover normally includes the engines, outdrives, shafts and props as installed equipment. Third-party liability sits alongside it, and most UK marinas expect a limit of at least £3m. Beyond that, the differences between policies show up in the treatment of machinery.

Sudden accidental damage to an engine — a submerged log through a prop, water ingress after a swamping — is typically covered. Gradual wear, corrosion, and failures attributed to poor maintenance usually are not. Some insurers offer a machinery damage extension that narrows that gap, and it is worth asking about on boats with high-hour diesels.

Speed, power and driver experience

Underwriters rate on maximum design speed as well as value. A displacement trawler yacht and a 40-knot sports cruiser of identical value are not the same risk. Once a boat is capable of higher speeds you may see conditions attached: a minimum age for the person at the helm, an RYA Powerboat or Advanced Powerboat qualification, or a higher excess on damage sustained above a stated speed.

Boats built purely for performance are treated differently again — see our speedboat insurance guide if the hull is a sports or performance design.

Where the boat is kept

Common exclusions and conditions to read

Frost damage deserves a mention of its own. Many claims on UK motorboats arrive in January because raw-water systems were not drained or filled with antifreeze. Insurers frequently apply a condition requiring winterisation, and it is one of the few exclusions entirely within an owner's control.

• Wear, tear, gradual deterioration, osmosis and corrosion.
• Damage caused by frost where the engine was not properly winterised.
• Loss of an unattended tender or outboard that was not physically secured.
• Use for hire or reward unless commercial use has been declared.
• Navigation outside the agreed cruising limits.

What tends to affect the cost

Cover and price will depend on the insurer, the policy and your circumstances. Two boats of the same value can be quoted very differently once speed and mooring are taken into account.

• Insured value, age, hull type and maximum speed.
• Engine configuration — single or twin, petrol or diesel, inboard, outdrive or outboard.
• Berth type, security and winter arrangements.
• Declared cruising area, including Channel crossings and inland waterways.
• Helm experience, qualifications and claims record.

Frequently asked questions

Do I need a licence or qualification to insure a motorboat?

Not always, but many insurers ask for evidence of experience on faster or larger craft and some make an RYA Powerboat Level 2 or Advanced Powerboat certificate a condition. Requirements vary by insurer and boat.

Are the engines covered if they fail?

Sudden accidental damage is commonly covered; mechanical breakdown, wear and corrosion generally are not. Some insurers offer a machinery damage extension. Check the wording rather than assuming.

Is my tender and outboard included?

Many policies include a tender and outboard up to a stated value, often on condition it is marked with the parent boat's name and secured when unattended.

Does the policy cover me on inland waterways?

Only if the navigation area allows it. Boats used mainly on rivers and canals are often better suited to the cover described in our river boat and canal boat guides.