J. Berry Company is located in Downey, CA, We have more than 35 years experience in industrial maintenance services. Owner, Jim Berry, is not only a general contractor but is also licensed as B (General Building Contractor), C33 (Painting and Decorating), C38 (Refrigeration), and C20 (Warm-Air Heating, Ventilating, and Air Conditioning). J. Berry Company has been troubleshooting and engineering solutions to those periodic, hard to do jobs, small and large alike. From HVAC duct cleaning and maintenance to installing cooling towers, we do it all. Including Aerospace, Government facilities, Hospitals, and Hotels. We work during plant shutdowns, off-hours and even holidays.