According to our records, this business is located at 422 Union St. in Wilmington (in New Castle County), Delaware 19805, the location GPS coordinates are: 39.743964 (latitude), -75.576235 (longitude). J & M Construction is categorized under Home Builders (SIC code 1521). Current estimates show that the unit has a sales volume of $944,000 and staff of approximately 4 people. You can contact the company by phone at (302) 661-1137.