Don't let the summer heat keep you from staying cool in your home or office. Northern Illinois Heating/Cooling, serving Rockford, Rockton & Belvidere, IL, and surrounding areas, provides quality residential and commercial HVAC services. Whether you need an air conditioning unit installed or repaired, our qualified technicians have the knowledge and expertise required to get the job done right the first time. Ready to cool off? Emergency: 815-742-0290