Oops! Whose Fault is Faulty Workmanship?

A general contractor installs a commercial storefront window system. Because the flashing is installed incorrectly, rainwater enters the building during the first storm. The building owner sues the contractor, seeking the cost to remove and replace the defective window system and repair the water-damaged drywall and flooring inside. The contractor tenders the suit to its CGL insurer. Notable…