Heating - Resealing Flex Ducts in Morristown, NJ

Was able to save a reseal majority of flex duct in attic. With the exception of 5 flex lines that are compromised beyond repair. Attempted to tape and seal broken sections but the more we touched it the more it crumbled visually showed and explained to house keeper she will advise home owner along with estimate to replace flex ducts. Applied 15% courtesy discount as 5flex ducts need replacing.