For the job, I work on a super tune-up on two system. I went through all the mechanical and electrical parts of the system and checked for maximum efficiency on both units. A duct cleaning was recommended for the downstairs unit due to the dust levels that we're seen on the system. A compressor saver was recommended on the upstairs unit and also a membership, customers approved however they are waiting to get some money in, and they will call the office to get technician out here to get to work done. Thank you for choosing Comfort Experts, have a great day! Customers informed me to always use the following email, timicctgtl@gmail.com.