With a little TLC, you can get your home’s old wood windows to work properly again! Many local homeowners decide to replace their house’s original windows with expensive new ones when some simple and inexpensive improvements will make the existing windows more energy-efficient—for a lot less money than replacements. Learn how to disassemble double-hung windows, replace ropes, restore sashes, reinforce loose joints, and weatherstrip. Fees: Standard member $50, Plus member $35, general public $75. Instructor: David Liberty. To register, call 617-442-2262, ext. 1.