A: Weatherization services are cost-effective energy efficiency measures for residential, multifamily, and commercial and industrial customers to improve comfort and save energy by repairing and improving the building shell. The goal is to increase your home’s energy efficiency,safety and comfort by identifying and repairing places where your home loses energy. Measures can include eliminating drafts by weather stripping, repairing doors, patching holes in walls and roofs, repairing damaged windows, insulating attic, walls, floors, heater pipes or furnace ducts.