Gene May Heating & Cooling is a well established, licensed and bonded union company. Since 1972 Gene May has been in Illinois serving Aurora, Oswego, Sugar Grove, Joliet, Plainfield, Naperville, Minooka, Morris and the surrounding Chicagoland areas. Our team is meticulously selected to ensure the service your furnace or AC receives is top notch. In addition to maintenance, we also provide HVAC repair and replacement. When it comes to ensuring your comfort, there's no job too large or too small. You can rest easy knowing that we always keep your satisfaction in mind.