We have been using Wojo's Heating & Air Conditioning for a while now. I believe they just cleaned the furnace for us. I have no complaints whatsoever. The technicians always seem to know what they need to do and they take care of it. I never have to fuss with anything. The techs are always so very friendly, courteous, efficient and show up on time. I highly recommend using Wojo's Heating & Air Conditioning. It is always easy to get an appointment too. In fact, two years back I had them replace our air conditioning unit and that is still running just fine. You can always count on the workmanship to be very good quality.