New Outside Sales Rep Joins ITCM Charleston Team John "JP" Byrne has joined ITC Millwork in Charleston as an Outside Sales Representative. JP graduated from the College of Charleston with a BS in Corporate Communication in 2004. Since graduation he has spent his time being an Estimator and an Installation Project Manager for Henselstone Window and Doors.  He will work to meet the growing demand for ITCM's wide product range in the Charleston region, as well as begin to extend ITCM's presence into Hilton Head and Beaufort, SC.