We have been using Greer's Banner Air for a long time now and we have always been pleased with the work they do. They come out to do the annual inspections of our heating and air conditioning systems both at our home and our rental property. Everything is easy from start to finish. When we call to make the appointment their staff is friendly and able to schedule the appointment in a time slot that suits our needs. The technicians are always prompt, polite and professional. They are courteous and respectful of our home or the rental property. If they find a problem they take the time to explain what they have found as well as what they can do to fix it. They also take the time to answer any questions we have for them. They are knowledgeable and friendly, easy to talk to. We highly recommend using Greer's Banner Air.