The Seventh Circuit held that the underlying complaint alleged an occurrence by asserting that the painting subcontractor was negligent in causing damage to the building. Westfield Ins. Co. v. Nat'l Decorating Serv., Inc., 2017 U.S. App. LEXIS 12516 (7th Cir. July 13, 2017).

McHugh Construction, the general contractor for construction of a 24 story condominium building in Chicago, retained National Decorating Service, Inc. as a subcontractor to perform all of the painting work. This meant National Decorating would paint the exterior of the building with a protective coating that was a waterproof sealant.

After completion, the building's board of managers sued McHugh, National Decorating, and others for damages resulting from faulty workmanship. The third amended complaint alleged: (1) significant cracking of the exterior concrete walls, interior walls, and ceilings; (2) significant leakage through the exterior concrete walls, balconies, and windows; (3) defects to the common elements of the building; and (4) damage to the interior ceilings, floors, interior painting, drywall, and furniture in the units.