Definition:Contractor's all-risk insurance (CAR)
🏗️ Contractor's all-risk insurance (CAR) is a comprehensive property insurance policy designed to cover physical loss or damage to construction works, including the permanent and temporary works, materials on site, and — depending on the policy structure — construction plant and equipment, during the course of a building or civil engineering project. Widely used across global construction markets, CAR policies are typically written on an all-risk basis, meaning they cover any fortuitous loss not specifically excluded, rather than listing named perils. The coverage is known by slightly different names in various markets — "contractors' all risks" in the UK and much of Asia, "builders' risk" in North America — but the underlying concept of protecting works in progress against a broad spectrum of hazards is consistent.
🔧 A CAR policy generally attaches at the commencement of construction works and runs until handover or completion, with many policies extending a maintenance or defects liability period during which damage arising from construction defects discovered after completion remains covered. The policy is typically structured in multiple sections: Section I covers the contract works and materials; Section II provides third-party liability coverage for bodily injury or property damage arising from the construction activities; and additional sections may address removal of debris, professional fees, or expediting expenses. Underwriters evaluate risks by examining project type (residential, commercial, infrastructure), construction methodology, site conditions, natural hazard exposure (earthquake, flood, windstorm), contractor experience, and the contractual allocation of risk among project stakeholders. In jurisdictions like the UK and Singapore, standard wordings such as the Munich Re CAR form have historically served as a market baseline, while U.S. builders' risk policies often follow ISO or proprietary carrier forms.
🌍 CAR insurance plays a vital role in facilitating large-scale construction and infrastructure investment worldwide. Lenders, project owners, and government agencies routinely require CAR coverage as a condition of financing or contracting, ensuring that physical progress is protected and that project funds can be restored if a loss occurs. The policy also underpins risk allocation frameworks in standard construction contracts — such as FIDIC (commonly used in international projects) and JCT (prevalent in the UK) — which assign responsibility for insuring the works to either the contractor or the employer. For insurers and reinsurers, the construction class presents both opportunity and concentration risk: a single mega-project loss — such as a tunnel collapse or a typhoon striking an unfinished high-rise — can generate claims running into hundreds of millions of dollars, making careful accumulation management and facultative reinsurance purchasing essential components of any construction underwriting portfolio.
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