Host Kevin O'Connor and plumbing and heating expert Richard Trethewey stop to see Echo Bridge, a 500-foot long arched structure built in 1976 to carry water over the Charles River. Back at the project house, landscape contractor Roger Cook digs up a ... (more)large, established shrub by the front walkway which will be transplanted to the backyard to help with screening. Roger also shows Kevin how work on the new fieldstone sitting wall is progressing. In the first floor parlor, general contractor Tom Silva shows Kevin how to install a replacement window. Meanwhile, Richard adds radiant heat panels under the entry hall, a great solution for warming an area that was not previously heated. PEX water pipe goes into the kitchen, while master carpenter Norm Abram travels to Germansville, Pennsylvania to see how countertop fabricator Paul Grothouse is crafting a beautiful 3-inch teak island top for the house.