Host Kevin O'Connor arrives to find landscape contractor Roger Cook overseeing the crew that is setting the footings for the new pergola, while also preparing to give the concrete stoop a makeover using fieldstone veneer on the riser and a bluestone cap on the top. Inside, master carpenter Norm Abram and general contractor Tom Silva begin trimming out the first floor windows, starting with the 16-foot bank of windows in the sunroom. The trim details will match the originals, using a build up of unadorned profiles created with a moulding machine. With the pergola on the way, Roger takes homeowner Allison Sharma to the Arnold Arboretum to see several different kinds of vines and select one that is appropriate for her front yard conditions. Back at the house, Norm surveys the progress on the second floor and sees how tile contractor Rob Raps is using pitching sticks to create a mud job at the base of the new shower.