Loud Brothers is a leading HVAC company based in McHenry, Il, serving McHenry County, Lake County, Cook County and parts of southern Wisconsin. For more than 70 years, Loud Brothers has offered both residential and commercial customers superior HVAC installation, HVAC replacement, HVAC repair, electrical services and more because our mission is your familys comfort. Though industry technology may be different from that of the 1950s, our familys dedication to providing the best customer service has not changed. Contact us today.