Under the Party Wall Act, any damage to an adjoining property should be rectified at the building owner's cost.

I understand that any damage that is due to the contractor's negligent work will be covered under All Risks insurance and any defective design by the Architect will be covered under PII. There is additional cover available for the Employer called Non-Negligent Damage insurance where damage has occurred that is not due to negligence.

Can anyone recommend a provider of Non-Negligent Damage Insurance for a private small-scale residential scheme?