ABOUT

ABOUT Diaz AA Heating and Cooling

Diaz AA Heating and Cooling has been proudly serving Chicago, IL, with expert HVAC installation and repair solutions backed by 20 years of experience. Our team is dedicated to keeping your home comfortable year-round, offering reliable and affordable services designed with your needs in mind. Whether you need a new AC installation, dependable furnace repair service, or complete heater installation, we're here to get the job done right. We specialize in energy-efficient unit installation to help you save on utility costs while improving indoor comfort. Every home is different, and we take the time to understand your space and recommend the best solutions for long-term performance.

From the moment you call us, you'll notice the difference. We offer free estimates over the phone and in person so you can make informed decisions without the pressure. Our highly trained technicians are experienced in all types of HVAC repair, including detailed air conditioning repair service for those hot summer days and trusted furnace repair service during the Chicago winters. We also provide complete ventilation services, helping to improve your indoor air quality and system efficiency. With us, you can expect honest recommendations, timely service, and work that's done with precision. Let's keep your home comfortable, efficient, and ready for any season. Call us today!