look at this website an AC tune-up at least once a year. However, if you use your system frequently or have an older unit, more frequent check-ups may be necessary.Here are a few common signs that indicate your system might need a tune-up. These signs might help answer any questions you may have about the issue and whether your page AC needs attention:An HVAC pro conducting testings on the efficiency and functionality of the AC condenser electrical components. AC tune ups can range in price from $40- $200. That said, low-cost air conditioning maintenance typically does not include an extensive and in-depth inspection and cleaning ofwel your AC system.