How much should I expect to pay for somone to do this basic maintenance to two older units (one a 25 yr old Amana, the other an 11 yr. old Westinghouse)? BTW, I'm supplying the filters...older unit in crawl space (24-30" from grade to underside joists) and one in upstairs closet, with both condensing units side by side about 6 ft from crawl space door. I'm in town in Atlanta. I typically change my own filters every 6 months, but haven't had either unit serviced in a few years.
