Often with listed properties double glazing can't exchange the first window design and specification (which is frequently one glazed). Here, secondary glazing units can provide extraordinary final results in its place. Historic Homes: It can be an outstanding option for preserving the original windows of period Houses even though https://arthuryreia.bloggip.com/34724997/the-fact-about-secondary-glazing-london-that-no-one-is-suggesting