With over 16 years of experience, Master Heating & Cooling provides trusted HVAC services in Streamwood, IL, and the greater Chicago area. Our licensed and insured team specializes in air conditioning repair, furnace installation and repair, air quality services, and thermostat installation, available 24/7 for emergency AC repair and commercial HVAC solutions. We're committed to quality workmanship and customer satisfaction, ensuring efficient and reliable service for homes and businesses alike. Office hours are 8:30 AM - 6:00 PM (Sunday through Friday). After-hours emergencies are handled 24/7 by owner, except on Saturdays.