At the project house in Brooklyn, host Kevin O'Connor arrives to find local builder Michael Streaman and stair fabricator Stephen Dijanic installing the vintage spiral stairs that the homeowners bought online. The new plaster medallion is installed in the parlor and design correspondent Carole Freehauf reveals the design choices for the two rental apartments. Homeowner Kevin Costello lays down click-together linoleum floor tiles in one unit while cabinet installer Oliver Earl deals with concealing ductwork over his cabinetry in the other unit. Finish carpenter Mario Quintuna shows master carpenter Norm Abram how he is rehabilitating the original five panel interior doors by patching holes, cleaning up edges and replacing panels. At the end of the day, the spiral stair is nearly complete and ready to be tested. Homeowner Karen Shen is thrilled with the way it looks and that Streaman found a way to modify it to make it fit.