According to our records, this business is located at 100 E Main St. in Ontario (in San Bernardino County), California 91761, the location GPS coordinates are: 34.0610777 (latitude), -117.6505121 (longitude). Montclair Metal is categorized under Fire- or Burglary-Resistive Products (SIC code 3499). Current estimates show that the unit has a sales volume of $1,370,000 and staff of approximately 10 people. You can contact the company by phone at (909) 988-8768.