Today I arrived at Air BnB located at 247 Main St, Plum Tx. As instructed I gained access to home via back porch, door was open and unlocked there was another contractor here onsite when I arrived. I completed the fall evaluation for the homes hvac systems. I began by verifying all units operating safely, and I also verified the systems performance. While inside I flushed and treated all the indoor water removal systems and changed the filters provided by customer. Outside I washed all units using water and I treated the electrical panels using electrical insecticide. Upon completion today I left the upstairs thermostat Off, units labeled Hallway and Living Room thermostats were left in Auto Mode Cool set to 85, Heat set to 63. Currently 72 downstairs and upstairs, locked the back door and left the keys inside the fish on back porch. Thank you for choosing Centex!