Benchmark Insurance are pretty good. Part of RSA, not cheap but in event of a claim are pretty good at dealing with claims. Chubb are very good. Have a fantastic claims record and pay out without delay. Policies are very comprehensive and allow for adding holiday homes and all other things which are not normally covered. If you expect a cheap quote forget it and if there is a claims history they may not quote. I was told last October Hiscox were not writing business in this country at present. A word of advice, if the policy excess is increased it can lower the premium significantly.
Chubb also do Motor Insurance which is exceptionally good if not brilliant.
PM me with any queries. I'm not a broker but a satisfied customer.