original windows in historic homes renaissance development washington dc

What to Consider When Replacing Windows in a Historic Home

11/17/22 7:45 AM Christina Wilson

Sometimes, the unique craftsmanship of historic buildings can create a dilemma for homeowners. In addition to the brickwork, the charm and beauty of the original windows of the historic home are certainly one of the property’s defining features. There are ways to maintain the integrity of the building's appearance yet still be able to enjoy energy efficiency. It's wise to seek expert advice about what to consider when replacing windows in a historic home.

Should You Repair or Replace Historic Windows?

Not all historic windows require complete replacement. When deciding how to proceed, it’s best to have a professional evaluation from a historic home expert as well as a window company. Of course, many window contractors are very good at what they do and possess a reasonable understanding of replacement requirements; however, they can miss critical steps like examining the bricks around the window and ensuring the entire structure is ready for the scheduled work. When asked to advise on the condition of failing brick and mortar, including the areas that surround windows, we are happy to provide our expertise and may be able to offer you references for preservationists who specialize in window restoration.

Making the decision to replace original windows can be a sensible option for several reasons: if they no longer function properly, are challenging to keep clean, or when sourcing and replacing broken hardware exceeds the actual cost of upgrading the windows. However, there are some situations in which replacement may not be warranted. For example, air leaks are not always the most important reason to consider a full window replacement. Instead, consider new sealing methods for original wooden windows, which are a significant energy-efficient upgrade. Combined with certain other historically accurate repairs, sealing can be an optimal solution in many cases.

What About Other Window Problems?

Other frequent concerns impacting the decision to replace historic home windows are broken panes, difficult-to-use or broken hardware, indoor leaks, deteriorating frames, peeling paint, and damaged brick. Your historic restoration expert can help you determine if these are fatal flaws of a historic window or simply items that need attention.

Many windowsills can be refurbished by removing peeling paint and repainting, solving concerns around curb appeal. A historic building expert can often source broken panes and hardware replacements, providing a precise, historically accurate repair. Leaking and damaged brick are usually caused by mortar loss. With access to expert tradespeople and historically accurate mortar and tuckpointing methods, leaks can be stopped, saving those bricks.

Meeting Historic Review Board Requirements

Historic districts in many cities, like Washington, DC, and Old Town Alexandria, VA, are protected by the regulations of historic review boards. This does not mean you can't address drafty or leaking windows, although you must do so within established guidelines. Newer materials, such as plastic composites, are frequently prohibited by the review boards. Instead, they often require the use of wood and other period-accurate materials. With so many possibilities for repair or replacement, you may need help navigating board regulations. Consulting with an expert in historic homes will provide the best solutions for maintaining your home's inherent character. Their expertise makes it possible to achieve the desired modern energy efficiency while retaining your historic home's craftsmanship.


The team at Renaissance Development are professionals with expertise in the restoration and preservation of historic brick homes and buildings. We are proud to work alongside preservation professionals that specialize in window and door restoration. Get in touch with us for an assessment of the condition of the brick and mortar surrounding your windows. 

Categories: Repair, Historic Preservation, Restoration, Curb appeal, Energy efficiency, preventive maintenance

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