Spotlight on Historic Window Styles – Double-Hung Windows
The Classic That Still Holds Up
Double-hung windows are the workhorse of historic architecture. If your home was built before World War II, there’s a good chance your windows fall into this category. But what exactly makes double-hung windows so enduring, and why are they a cornerstone of historic restoration?
Let’s open them up—top AND bottom—and take a look.
What is a Double-Hung Window?
A double-hung window features two movable sashes that slide vertically within the frame—one on the top, one on the bottom. This design allows for flexible ventilation (more on that in a sec) and easy maintenance.
Unlike single-hung windows (where only the bottom sash moves), double-hung styles provide both function and flair.
Ventilation with a Vintage Twist
Double-hung windows were designed for natural airflow before HVAC was even a twinkle in an engineer’s eye.
✅ Lower the top sash: warm air escapes through the top.
✅ Raise the bottom sash: cool air flows in at the bottom.
Combined, you get a passive ventilation system that still works wonders today - especially if your home is in a hot climate.
Aesthetic Features to Love
Double-hung windows come in many varieties, each with distinct architectural charm:
Six-over-six panes – Common in Colonial and Federal-style homes.
Two-over-two or one-over-one – Seen in Greek Revival, Victorian, and early 20th-century designs.
Decorative muntins and profiles – From clean and simple to highly ornate.
There are many other styles, but no matter the era, double-hung windows blend elegance with functionality.
Typical Materials & Construction
Historically, double-hung windows were built with:
Old-growth wood frames and sashes – Durable and rot-resistant.
True divided lights – Individual panes of glass separated by muntins.
Weight and pulley systems – Smooth counterbalanced operation (and a great excuse to learn how pulleys work).
Today, these original elements are often intact, just waiting for restoration.
Common Issues (and Restoration Solutions)
🔧 Stuck sashes – Usually due to paint buildup or damaged sash cords.
Fix: Remove excess paint, replace cords, and lubricate tracks.
🔧 Broken or missing cords – Gravity always wins.
Fix: Access the weight pocket, thread in new sash cords or chains.
🔧 Drafts and air leaks – Caused by worn weatherstripping or shrinkage in the wood.
Fix: Add new weatherstripping or apply caulk in strategic places.
🔧 Paint buildup on hardware – Makes locks or lifts hard to operate.
Fix: Soak and polish the original brass or cast-iron pieces.
Why They’re Worth Saving
🪟 Architectural authenticity – Original double-hungs are irreplaceable pieces of craftsmanship.
🌱 Sustainability – Restoration avoids waste and leverages premium old-growth materials.
💸 Value – Preserved original windows can boost historic home value.
💡 Efficiency – When combined with storm windows and proper weatherproofing, restored double-hung windows can perform on par with modern ones.
Restoration Tips for Double-Hung Windows
Photograph before disassembly to make reassembly smoother.
Label each sash and component—trust us, they all look the same by the end of day two.
Use linseed-based glazing compound for durability and authenticity.
Hire a pro for spring balances or hardware replication if needed.
Conclusion: The Gold Standard of Windows
Double-hung windows have stood the test of time - not just because they look good, but because they work beautifully. Whether your home is Colonial, Craftsman, or Victorian, there’s a good chance its soul lives in those sashes. A proper historic window restoration can improve your home’s character - and home value!
Preserve them, restore them, and celebrate the engineering genius and aesthetic grace of this historic classic.
