4/21/25 Cleaned and televised all underground ductwork. In preparation of trenchless spincast mortar. 5/2/25 Applied trenchless spincast mortar to all underground ductwork and furnace box. As well as repaired register vents with hydraulic cement. 5/13 Applied first application of duct armor to all underground ductwork and furnace box. 5/20/25 Applied second application of duct armor to all underground ductwork and furnace box.