In the barn, Norm meets up with chimney specialist Mark Schaub to determine if his oak lintel above the fireplace is truly safe, and if it will meet code. Kevin meets interior designer Alexa Hampton for a sneak peak at the furniture and fabrics for the dining room. Kevin meets millwork specialist Mark White at his showroom that specializes in high-density polyurethane trim, and back in Carlisle, Tom shows Kevin what it's like to work with. Richard walks Kevin through the anatomy of the mechanical room. Back in the barn, there is a surprising twist - just a few hours into it, the fireplace has already failed the safety test and Norm breaks it to Mark that he must swap out the wood for a masonry lintel. Cabinet specialist Maureen MacDonald shows Norm the newly installed cabinets in the office, kitchen and pantry. The day ends with the much-anticipated arrival of the built-ins for the library.