The Secretary of the Interior's "Standards for Rehabilitation" require that where historic windows are individually significant features, or where they contribute to the character of significant facades, their distinguishing visual qualities must not be destroyed. Further, the rehabilitation guidelines recommend against changing the historic appearance of windows through the use of inappropriate designs, materials, finishes, or colors which radically change the sash, depth of reveal, and muntin configuration; the reflectivity and color of the glazing; or the appearance of the frame. Repair of historic windows is always preferred within a rehabilitation project. Replacement should be considered only as a last resort. However, when the extent of deterioration or the unavailability of replacement sections renders repair impossible, replacement of the entire window may be justified. In the case of significant windows, replacement in kind is essential in order to maintain the historic character of the building. However, for less significant windows, replacement with compatible new windows may be acceptable. In selecting compatible replacement windows, the material, configuration, color, operability, number and size of panes, profile and proportion of wood and metal sections, and reflective quality of the original glass should be duplicated as closely as possible. Preservation Brief 13: Sharon C. Park, AIA

​Please send all wood window replication inquires to

• Matching of Historic Window Building Fabric
Wood Species & Moisture Content

• Matching of Historic Profile & Site Line

• Matching of Methodology of Construction
Mortise & Tenon / Cope & Stick

• Matching and/or Incorporate Glazing
Historic Glass, IG Glass, Low-e Glass, Etc.
Putty Glazing / Cypress Wood Beveled Trim

• Matching of Historic Paint and/or Stain Finishes

• Matching of Hardware, Pulleys, & Rope/Chain

• Matching and/or Incorporate Weatherstripping

• Optional Installation Services

Copyright 2013. Leeds Clark, Inc. All Rights Reserved.

Wood Window Replication

Following the guidelines referenced above for over 40+ years in business, Leeds Clark, Inc. has replicated and manufactured thousands of historic wood windows on projects across the country. Whether it be a single wood window sash for a historic cabin at a historical park or complete replication of 172 wood window units on a fire destroyed courthouse, Leeds Clark, Inc. has provided its clients with in kind replication of the historic wood windows specified. Every historic wood window Leeds Clark, Inc. replicates and manufactures incorporates the following features: