A general contractor (Millis) and home builder (Trendmaker) were sued for personal injury. An insurance dispute arose over whether Trendmaker qualified as an additional insured under the contractor's policy with America First Lloyd's. The court ruled that Trendmaker was indeed an additional insured based on written contract language between Millis and Trendmaker, even though Trendmaker had no direct contract with the insurance company. This matters because it shows that insurance protection can flow down through contract chains without requiring direct agreements between all parties.
Make sure your subcontracts explicitly require the general contractor to add you as an additional insured on their insurance policy—written language in your contract is what counts.
You don't need a direct contract with the insurance company to be covered; the general contractor's contract with you can trigger your additional insured status.