We will remove old ductwork and dispose. Remove old plenums and install one supply and one return plenum. Install all new R-8 Ductwork. That includes all collars, y’s, junction boxes and seal to no more than a a 5% leakage per Title 24 Requirements. We ensure no more than a one degree split temperature from room to room. Ductwork will have a 10 year connection warranty. There will be a total of 15 total runs with two of them being return ducts. This will allow your newly installed systems to run at full efficiency and extend life of the system.