JHN Inc. is an acoustical contractor in Southern California offering acoustical and specialty ceiling and wall panel installation, acoustical ceiling restoration, and ceiling repairs. It provides acoustical contracting services for both public works and private commercial projects. In addition to installing acoustical ceilings, it also installs wood, metal, chrome and plastic ceilings, and acoustical wall treatments. It cleans, sanitizes and re-coats acoustical ceilings, and cleans and details industrial facilities and commercial kitchens.