As Chicago’s premier heating and cooling experts, Master Tech has the skills needed to get the job done right the first time. We’ve been serving McHenry and Kane counties, Illinois, and the Northwest suburbs of Chicago for more than 20 years. You can trust our reliable, skilled and licensed HVAC technicians at Master Tech. Your satisfaction is guaranteed. We install and repair all makes and models, and we are there when you need us 24/7 at no extra charge for nights, weekends and holidays. We serve both residential and commercial customers. With Master Tech, you’ll get the service you expect when you need it most, as well as the expertise you deserve. Our services include: Furnace installations and repairs AC system sales and service Water heaters and boilers Sheet metal fabrication Plumbing Humidifiers Our products include: Programmable thermostats and controls Air Conditioners Furnaces Fan and evaporator coils Heat pumps Boilers Duct-free split systems Generators We’re fully licensed, bonded, and insured for your protection, and we offer senior citizen discounts. For a free quote, call Master Tech today!