Historical projects require skill, experience, and a system that works every time. We have it down to a science.

Challenge: As a New Haven, CT Landmark Building no changes to the exterior of the building could be made. Because the building is an active educational facility it needed to be energy efficient and comfortable for its inhabitants. The old original windows were drafty and inefficient.

Result: The original windows were converted to double-pane insulated and weather stripped units maintaining the historical integrity of the building. As a result of this successful project numerous additional historically significant Yale buildings have had their windows converted using the Bi-Glass system.

Challenge: Retain the original windows and achieve energy efficiency and proper operation of windows.

Result: All casement and double hung windows restored and double-pane Low-E glass installed. 28% savings in gallons of oil used each year. Half screens installed.

Challenge: To maintain the original character and integrity of the original wood windows at a competitive price. Original windows were made from +/- 100 year old dense lumber compared to new windows made from +/- 10 year old new growth wood which will not last as long.

Result: All single pane deteriorated original windows repaired with epoxy consolidation techniques and converted to double-pane insulated and weather stripped units. Original windows now have same energy ratings as new quality double-pane wood replacement units. Price to convert using the Bi-Glass system was considerably less than quote for new Marvin window replacements.

The Bi-Glass system will allow you to enjoy your beautiful wooden windows like never before. Because now they are convenient, snug and functional as well as beautiful.

Challenge: The only example of Venetian style windows in New Haven County. Yale wanted to restore exterior of building and retain original windows.

Result: Original double-hung and casement windows restored, epoxy consolidated and converted to double-pane Low-E (Cardinal 272) glass.

Challenge: The oldest surviving house in the Upper East Side Historic District. Retain original look of the front windows. Required Landmark approval.

Result: 10 original arch top double-hung windows restored, epoxy consolidated, re-fit, weather stripped and double pane Low-E glass installed. Original windows now operate and are as energy efficient as new in kind windows at about 50% of the cost.