M&I Heating and Cooling providing superior service on the north side of Chicago and surrounding suburbs. Our staff's experienced over 20 years in the industry. We specialize in residential and commercial service, repair, and installation of air conditioning and heating systems (HVAC) and General Contracting. As a family owned and operated business, we take great pride in the fact we?re not so big that you are treated as just another job on the order board or too small to provide you with the level of service you desire. We are as big as we need to be in order to meet your heating, air conditioning and general contracting needs with the flexibility so essential in today?s fast paced world. We take great pride in the work that we do. At M&I Heating and Cooling we treat our customers with the utmost respect and welcome them as part of our extended family. We like to see our customers happy, with our service and products. Thanks to our customers, 90% of our business and growing success is based on referrals. As such, we have developed a business philosophy that has served us well over the years. We offer Commercial and Residential Preventive Maintenance Agreements.