For this job, I worked on a super tune-up on this gas furnace system. I went through all the mechanical and electrical parts of the system and checked for maximum efficiency. Filter was changed and outside unit was washed. Customers showed interest on getting a duct cleaning, I presented to them our two options and the benefits each one has. Customers approved for a duct cleaning 2, for their coil, blower, ducts and for the antimicrobial to be added to the ducts. Customers want to be called by the office tomorrow for them to schedule the work to be done, they will see today when the job can be done. Thank you for choosing Comfort Experts, have a great day!