Hi this is Richard if you need a maintenance done I charge $85 per maintenance per unit also my service charge just to do a diagnostic is is $85 everybody else charges 125 to 150 depending on the day if you want to have low prices I also do everything dealing with HVAC I do maintenances I do adding runs anything dealing with HVAC or heating and air I do I don't charge you like the big companies charge you you buy the equipment and supplies and I charge you labor only I cannot go home at night and charge somebody outrageous prices I have a conscious and I know people have families I know they got kids to worry about in grandkids and some people on fixed income so I will look out for everyone if it's time to get your unit serviced please call me at 1415-718 5552 when you call it it may say California but I'm not from California I'm in North Carolina I do everything in the triad and if you're interested please call me have a wonderful day thank you