WINDOW RETROFITTING



The system we have developed provides for a cost effective alternative to replacement windows in historic buildings. Old windows even with broken parts and/or rotted wood can be completely restored and made attractive and functional. The windows and glass are warranted from 3 to 10 years, depending upon the design and the desires of the client.

Prior to any work being performed, a complete computer database is created to define and organize all of the known conditions and desired extent of retrofit. This database is used to catalog such items as glass size, existing damage, missing of damaged hardware, etc. Additionally the database is used to monitor the work, order materials, print labels, etc. During an initial survey a label is placed on each sash to track its progress and to identify the sash after removal. A corresponding label is also placed on the remaining window trim to help locate and identify the opening. Existing window sashes and parts are removed. A temporary covering is placed over the opening. The window parts are sent to our shop or a field shop for repair and retrofitting. The old glass is removed and the wood sashes are repaired. Then the existing glass mortise is routed out for thicker insulating glass. The sash is further prepared by prime and/or finish painting. The new glass is installed in accordance with the glass manufacturer's recommendations in order to preserve the warranty. A color matched silicone sealant is utilized to re-glaze the sashes. The sashes are repaired with a proprietary epoxy-wood paste and consolidant. Windows are painted and finished to match the existing color scheme.

Weather-stripping is either repaired or replaced. Sash chains are replaced with with new. Cotton "rope" sash cord would be replaced with brass chain. Existing hardware, i.e. locks, pulls, etc. are cleaned using a chemical wash, high pressure water blasting, and then polishing to a bright finish. Broken hardware items are replaced with replicas. If you are interested in this system or would like additional information please contact us.