What is a Precision Tune-up and how much does it cost?Besides the comprehensive visual inspection that comes with our System Inspection, a Precision Tune-up also includes a full maintenance cleaning and lubrication of the heating or air conditioning equipment components. Discover more here about Roland J. Down Service Experts Heating & Air Conditioning’s Precision Tune-up steps . The expense of a tune-up varies by season, and may generally vary from $69 to $159. Printable coupons with seasonal discounts on tune-ups can often be found on our Coupons page.