Kevin meets mason Mark McCullough as he starts laying blocks for the mudroom foundation. Tommy builds a custom bay window for the new kitchen. Norm visits the shop where the original windows are undergoing restoration. Tommy shows Kevin how he uses a Dutchman's patch to cover the holes left from abandoned electrical outlets in baseboards. Kevin meets homeowners Katherine and Murat at the Boston Design Center, where we meet their interior designer Amanda Reid and learn about her plans for the formal living room. Kevin finds Tommy putting in another beam to open up the front entryway.