H. R. Stewart, Inc. in Cary, IL, offers a wide range of plumbing, air conditioning, heating, and sewer cleaning services for commercial, industrial, municipal, and residential customers throughout Chicagoland. Since 1930, our family-owned and operated business has worked to fix your furnace, humidifier, and water heater. Whether you need planned or 24-hour emergency service, our fully stocked service trucks are ready to turn on a dime.