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The insurance company concerned changed its name last year and they don't want the bad press as they are one of the big ones when I checked the insurance last year they told me it was valid now they don't know - we have consulted a solicitor and we have a really good case against the builder but would only be able to afford to go after him through the insurance.
No we are not living in the house at the moment but will have to move in there at some date in the near future. I have contacted cowboy builders, trading standards, watchdog etc they are interested but will only look into further if we can find others out there that he has done the same thing too. We did have his company credit checked, checked references, checked his work and we have also hired on recommendation and still had problems.