Cut access to ductwork in drywall in basement.Cleaned all underground ductwork in preparation for trenchless spincast mortar. Applied trenchless spincast mortar to all underground connections. Repaired register vents and supply box. 12/5/25 applied first application of duct armor to all underground ductwork and supply box. 12/12/25 applied second application of duct armor to all underground ductwork and supply box.