Window Improvement Masters is dedicated to providing the building owners of northern New England with high-quality, cost-effective, and environmentally-sound products and services to improve the efficiency, operation, durability, and enjoyment of their windows. Window Improvement Masters is northern New England's first licensed manufacturer and distributor of the patented Advanced Energy Panel, an affordable and energy efficient interior window insulation product of exceptionally high transparency, quality and durability. These panels can be installed in any residence, office or industrial building. Our panels have a higher EnergyStar™ insulation rating than most replacement windows, yet are a fraction of the cost. "Don't Replace Your Windows ... Improve Your Windows!"