When a Window Is More Than a Window: Repair, Restore or Replace Windows on Your Period Home?

Two vintage Pacific Northwest homes, the same age and architectural style, sit on the same block. One has its original windows, carefully maintained or restored. The other has generic replacement windows. They may have the same floor plan, but they won’t necessarily have the same curb appeal—or the same value.

Old windows sometimes need work. A pane breaks. A sash sticks. Newer glass can improve energy efficiency. But when windows in a period home need attention, the question isn’t simply whether to replace them. It’s what to do with them.

First, know your architecture. In a period home, windows are more than functional features; they are part of the house’s character. Before choosing a solution, look at the architecture of your home and the windows that go with it. The Washington State Department of Archaeology & Historic Preservation is a good resource, and you can check out your home’s style online.

For example, craftsman homes commonly have wood double-hung windows with multiple panes in the upper sash. Tudor Revival homes often feature grouped, vertically proportioned windows, including casements and leaded or patterned glass. Midcentury Modern homes tend toward larger expanses of glass and horizontal lines. Some 1960s and ’70s suburban homes may lend themselves to thoughtful reinterpretation rather than exact reproduction.

Repair, restore, reproduce, replace—or rethink? Once you understand your home's architecture, the next question is what kind of work your windows actually need:

• Repair when the original window is basically sound. Chosen Wood Window Maintenance and CNG Window Restoration are local examples of companies that do this work.

• Restore when the original is an important part of the house’s character. Westbrook Carpentry & Millwork specializes in period window restoration, as well as CNG, which also handles painting, staining and finishing.

• Reproduce when the original is gone or beyond reasonable repair. Both Westbrook and CNG reproduce older historic windows, while Windorco manufactures custom windows in Seattle.

• Replace when condition, performance or maintenance make replacement the better choice—but still consider the architecture. Cherry Creek Windows & Doors offers replacement windows that can closely reproduce the appearance of older windows, including wood-frame and leaded-glass options with modern double-pane glass.

• Rethink when exact reproduction isn’t necessarily the best answer. This can be particularly relevant to some 1960s–70s homes, where thoughtful redesign may suit the house better. Iron Door Works offers one example of this approach for entryways.

Older isn’t automatically better. The important thing is understanding the house well enough to decide what should be preserved, repaired, restored, reproduced, replaced or rethought.