Not necessarily. The members of the Historic Preservation Commission realize that all materials have a set life span, however, historic doors and windows were designed to allow for repair of individual components instead of full scale replacement.
The commission and its staff advocate for repair of existing historic windows and doors for a variety of reasons ranging from environmental factors, to material durability, to economic investment. In situations where historic windows and doors are deteriorated beyond repair the commission has approved installation of new windows and doors that match those being replaced in size and profile.
For information regarding what is considered environmental factors, material durability and economic investment, please visit theWindow and Door Installation Factors page.