AJ Celiano is a commercial and industrial mechanical contracting firm that specializes in heating, ventilating and air conditioning services. The company offers mechanical construction designs, renovations, retrofits, equipment upgradation, product installations and maintenance services. It also offers refrigeration services. Its products include air conditioners, furnaces, boilers, heaters, ventilators and refrigerants. It also participates in a energy-efficiency program, New Jersey SmartStart Buildings, which offers an extensive array of incentive plans, financing options and various services. Founded in 1925, AJ Celiano is located in Cranford. N.J.