Our building is undergoing construction, and I was worried about all the debris in my condenser and the move of the unit by the construction crew, so I called Cool Air for a tune up/check-up. used the online coupon for some savings, and Xavier took great care of all my stuff. He vacuumed out the condenser, game me tips on the right filter to use, and went over how to do maintenance beyond the professional check-ups to assure everything was working smoothly. things like coil cleaning every 4-5 years, filter changes every 30-90 days depending on dust, keeping the drain line clear/getting rid of the "slime" that builds up. They called ahead to give me an arrival window (which meant I could do errands and not be sitting around all day for the appointment window. The whole process was about 45 min, and options to pay were cash, check or credit card. Easy! #Recommend.