OML HVAC provides residential and commercial heating and cooling services to the Addison, IL area. When you choose OML HVAC you can rest assured that you are going to be treated with care, respect, and honesty. We provide complete air conditioning services like AC repair / maintenance, heat pump repair / replacement, furnace repair, thermostat replacement, ductless system installation, dehumidifiers, air purification systems and more. Our heating and cooling company takes pride in providing high-quality work with clear straight forward pricing. No surprises and no scare tactics. We understand that having a technician come into your home in these uncertain times can be stressful and take extra care to ensure your comfort in all aspects of the word! We are true professionals.