Performed video inspection of the under-slab transite concrete ductwork serving the home's HVAC system. Utilized a remote camera to thoroughly inspect the interior conditions of the 12"x18" main trunk line and branch duct runs with metal fittings. Identified areas of duct settling leading to cracks and separations at joints over time. Based on the inspection findings, will provide a proposal to rehabilitate the existing ductwork using an EPA-approved spray-applied sealant to encapsulate any exposed concrete materials. This spray lining process forms a new seamless interior surface, preventing future air leaks or hazards from the aging transite ducts while eliminating the need for full replacement.