Short Business Description DFW Crown Moulding Co. We are full service interior custom trim company. We specialize in the installation of crown moulding, baseboard moulding, interior doors, ship lap, casings, wainscoting, fireplace mantels, and several other interior trim projects. Full service means we provide all materials and supplies involved in your project. You dont have to worry about any aspect of the job. We even paint all of our own installations.