1. Trexler Engineering Barnard Hill Rd, Dunbarton, NH 03046 Coordinate: 43.11443,-71.634735 Phone: (603) 774-6060
2. Trexler Engineering 38 Barnard Hill Rd, Dunbarton, NH 03046 Coordinate: 43.11125,-71.62172 Phone: (603) 774-6060