While homeowner Liz Bagley works to strip paint off the front door trim, general contractor Tom Silva creates a wood inlay to patch her kitchen floor with material salvaged from other parts of the house. Plumbing and heating expert Richard Trethewey shows host Kevin O'Connor the progress in the basement, and the anatomy of the new boiler for the first floor unit. Kevin visits Boston Symphony Hall to see how they are using custom milled maple and steel cut nails to replace the 100-year-old original stage floor, without altering the renowned acoustics of the hall. In the second-floor bathroom, Tom shows Kevin how he's milling up custom PVC mouldings to trim out a window that is in a shower well, and therefore vulnerable to water damage.