Contractor All Risks insurance is essentially a combination of insurances covering loss or damage to temporary and/or permanent building or civil engineering project works, tools, equipment and construction machinery of the insured against any unforeseen and sudden physical loss or damage from any cause whatsoever, other than those specifically excluded from the policy. It is extended to cover third party legal liabilities.
This policy provides cover for those who have an immediate material interest in a project. These are the Principal (employer), the Contractor and usually all sub-contractors, often including suppliers of materials and equipment.