Client stated garage was getting cold due to a supply duct the previous owner put inside the garage which was taking air from elsewhere in the house -Technician removed duct that was cooling the garage and sealed the opening -Airflow was still not the best when all zones were open -Zone dampers were not able to be adjusted to provide better airflow to designated areas -Ducting is inaccessible unless we cut open drywall, so there is not much we can do about the way the Ducting is ran and what size they are -New zone dampers were recommended if airflow is still an issue even with the supply duct to the garage being removed -System was also completely sealed as the installers did not seal every party of the air handler -Filter was replaced as well