We will cover up to $500. COVERED: accessible ductwork from cooling and/or heating unit to point of attachment to registers or grills. NOT COVERED: All other components, including but not limited to: Insulation; asbestos covered ductwork; registers; grills; dampers; improperly sized ductwork; diagnostic testing of, or locating leaks to ductwork, including as required by any law, regulation, ordinance or code or when required due to the installation or replacement of system equipment; ductwork outside the perimeter of the home or crawl space; collapsed or crushed ductwork; ductwork damaged by moisture or rodents/animals/insects. We will only repair unobstructed and accessible ductwork. Obstructions include, without limitation, walls, floors, ceilings, built-in appliances, systems, and cabinets.