HOME LEADERSHIP SERVICES CONTACT US PHONE: 281-392-7747 | FAX: 281-392-7727 CONSTRUCTION As a construction service contractor, MCSI provides our customers with skilled craftsmen, unsurpassed safety practices and impeccable quality in industrial construction. We are a trusted construction resource for our customers in a wide range of industrial settings including refineries, chemical plants, compressor and metering stations, power plants, and natural gas storage facilities.