Work begins on the exterior of the building, first by cleaning any old cracks, and then by applying a flexible polyurethane caulking that is blended to match the texture of the old stucco. Master carpenter Norm Abram repairs and updates the original front doors to the house, which were recently discovered in the basement. Inside, plastering contractor Karl Gross uses a reinforced plaster mix, mesh tape, and joint compound to patch the old plaster and prevent future cracks. Nearby, landscape contractor Roger Cook visits a colorful East Boston community garden. While back at the house, coatings specialist Scott Bennung shows host Kevin O'Connor how he's applying an elastomeric coating, rather than paint, to the stucco that will seal out water and provide a fresh, clean look for the house.