According to our records, this business is located at 6914 N Olcott Ave. in Chicago (in Cook County), Illinois 60631, the location GPS coordinates are: 42.006633 (latitude), -87.814065 (longitude). Custom Environmental Inc is categorized under Warm Air Heating and Air Conditioning Contractors (SIC code 1711). Current estimates show that the unit has a sales volume of $730,000 and staff of approximately 5 people. You can contact the company by phone at (773) 774-9899.