Our underwriters combine state of the art technology with multiple data sources to allow you to quickly and simply build a flexible insurance package that protects your family, home and possessions.

As a specialist multi-product broker, our underwriters need sufficient information to provide your bespoke insurance quote.

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Videos About Three Castles


Quality courtesy car in the event of an accident

Accidental damage as standard on your contents giving you peace of mind

We'll pay for those extra costs you may not have considered

What happens if your prestige car breaks down

Getting your pets and passengers home in the event of a breakdown

Our Policy Benefits

Off-piste skiing covered as long as you’re accompanied and it’s not against the advice of local authorities.


We expect to accept 95% of all declared medical conditions on our travel cover.


We will make sure all your records are up to date and handle any claim from start to finish, giving you peace of mind.


Worldwide travel cover and winter sports included.


Any trips departing from and returning to the UK for up to 90 days is covered – we can also agree on longer trips.


Three Castles cover policies are underwritten by Archipelago.

Arch is a specialty lines underwriter based in London. It provides the security behind Archipelago’s policies.


It is a wholly owned subsidiary of Arch Capital Group Ltd, a Bermuda-based company with approximately USD12.49 billion in capital (as at 30/06/19) providing insurance, reinsurance and mortgage insurance on a worldwide basis through its wholly owned subsidiaries

Arch Insurance (UK) Ltd Financial Strength Ratings:


  • A+ Standard & Poor’s
  • A+ Fitch
  • A+ A.M. Best Company
  • A2 Moody’s

Learn more about
Arch Insurance (UK) Ltd (Arch)