How the circa 1720 front door is being restored with flexible epoxy and a paint job; and the HVAC system is being upgraded from one zone to three with a plug-and-play zone damper system. Also: the 1300-pound marble island top is brought into the kitchen; sliding entry doors are created from two old doors; a raised brick hearth is installed around the gas fireplace; and rotted railings are replaced on the back deck. In the second half: installing a front door; driving rebar into the ground.