So now is the time to call us for a Pre-Season appointment. Where our technicians will come out and clean the outside condensing unit, check freon level, which will include up to 2 lbs. of freon, and check all the safetys. This will save on utilities and increase the life of the unit. We currently have a special for &89.95, for each unit, but if you sign up for the Fall 2010 Pre-Season, as well, we offer a fee of $139.95, for each unit. That is a savings of $39.95. REMEMBER, it is best to stay cool during the Oklahoma summer months.