Definition:Contractors' all risks insurance
🔨 Contractors' all risks insurance is a broad form of property insurance designed specifically for construction projects, covering physical loss of or damage to the contract works, materials, plant, and equipment on a project site during the construction period. Written on an all-risks basis, the policy covers any cause of loss unless specifically excluded — a fundamental distinction from named-peril policies that only respond to listed events. Often abbreviated as CAR insurance, it is a staple product in construction insurance markets worldwide, commonly required under building contracts such as those based on FIDIC terms internationally, JCT forms in the UK, or AIA contract documents in the United States, where analogous coverage is more commonly called builders' risk insurance.
🔧 A typical CAR policy is structured with several sections. The primary section covers the permanent and temporary works themselves — including materials delivered to site and, often, materials in transit or stored off-site — against risks such as fire, storm, flood, theft, collapse, and accidental damage during construction. A second section usually provides third-party liability coverage for bodily injury or property damage arising from the construction activities. Many policies extend to cover the contractor's own plant and equipment, existing structures owned by the project owner (often called the "principal's existing property" extension), and a maintenance or defects liability period after project completion. Exclusions typically carve out losses from wear and tear, design defects (though design cover can be bought back via extensions such as the LEG — London Engineering Group — endorsements), war, nuclear events, and consequential financial losses unless delay in start-up cover is added. The sum insured is generally set at the full completed value of the contract works, and underwriters assess the risk based on project type, location, construction methodology, and the contractor's track record.
📊 Contractors' all risks insurance occupies a central role in the risk architecture of any construction project, protecting against the financial consequences of events that could set back or destroy months or years of work. Lenders and project financiers typically mandate CAR coverage before releasing funds, making it a prerequisite for construction finance rather than an optional purchase. The market for CAR insurance is served by a mix of domestic insurers, international specialty markets, and Lloyd's syndicates, with reinsurance playing a significant role on large or catastrophe-exposed projects. In regions prone to natural catastrophe risk — such as earthquake zones in Japan, Turkey, or the west coast of the Americas, or flood-prone areas in Southeast Asia — CAR underwriting requires careful catastrophe modelling and may involve higher deductibles or sub-limits for nat-cat perils. As construction methods evolve with modular building, 3D printing, and complex infrastructure mega-projects, CAR policies continue to adapt, making this one of the more dynamic product lines within the engineering insurance class.
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