Arrived on site to diagnose a no heating system that was just installed in June. Upon arrival spoke over with client and system was heating when installed but just recently they started to notice house was getting cold while heater was running. System is operating properly and heating. Inspected duct run under house and found ducting to be disconnect from the vent. Other ducting had a poor connection which will disconnect in time if left they Same. Which is allowing all the cold air from outside to enter air stream in home. Advised client of findings and they stated they would like to repair and seal up ducts for now. Advised client so they could be aware resealing ducting is just a bandage fix for now and will operate and help buy them time so they can get past winter. Connected and sealed up ducts both ducts. Ducting is connected and sealed up with zip ties duct tape and pookie to seal up and lose connections now. Cycled system to ensure air flow is being produced in home now. Client