Arrived onsite for review of the thermostat to add WiFi thermostat and possibly adding an additional wire. Pull the thermostat off the wall and inspected the current wiring. Found 4 wires being used and 6 wires in the packet. This provides two wires to be used to power wifi thermostat. Called customer to confirm there aren’t any known issues with the two unused wires. Will provide estimate for renovation, thermostat installation, and duct cleaning.