Customer concerned about unit not cooling bedroom well. Checked thermostat location and filter location. Has 7†supply duct and cell wall return. Unit has 4†block filter in attic. Checked ductwork connections and inspected ceiling height in bedroom. Estimate for new 8†duct supply. 50’ long with new box and grille. Estimate for new tribox (8,8,8,5) with new flex and supply boxes. 14†supply duct. Estimate for new 9000k mini split system for bed room wall. Will need mini split drain pump.