The superior performance of Sheffield® windows starts with innovation and the engineering process. These windows have been crafted to provide superior energy savings in the home. There is an effective insulating barrier produced by the multi-chamber design of these units, which allows for dead air to be trapped. This along with the fusion-welded frames and sashes for structural strength prevents air and moisture infiltration. Sheffield windows have beveled mainframes and give a timeless, detailed appearance in any home.

Sheffield II is a new addition to the Sheffield window family. Specifically designed for the west coast, these windows have the same energy benefits as the Sheffield windows with new colors and designs.