Looking to replace your old, inefficient windows? Don't throw out a window that is better than you can buy. We restore your historic windows making them >200% energy efficient (your sashes are double-paned, weatherstripped, repaired) and operate like new again. Save your windows and make them beautiful again. Bi-Glass of Connecticut, CT BI-GLASS, BIGLASS, CONNECTICUT WINDOWS, energy savings, replacement windows, weatherproof, wooden window, windows, double paned low-e glass, old wood, historical restoration, only the original will do, modernize, craftsmen, home preservation, preserve your windows, eliminate drafts, energy efficiency, retain value, window restoration, salvage old windows, custom windows, old window conversion, save time, save money, preserve value, window preservation experts, preservation