Custom Window Treatments for Old Homes

Historical Charm vs. Modern Function: Can You Put Modern Shades in an Older Home?

If you live in a vintage home—the kind with original crown molding, hand-poured glass, and character that modern builds can’t replicate—you’ve likely hit a common snag: the shallow window frame. The most frequent question we hear from homeowners of 100-year-old properties is: “My window frames are barely an inch deep. Am I stuck with outdated curtains, or can I actually get modern shades to fit?”

The answer is a resounding yes, but it requires a bit of “architectural aikido” to balance historical integrity with 21st-century function.

The Great Debate: Inside Mount vs. Outside Mount

In the world of window treatments, the “Inside vs. Outside” debate is never more heated than in a vintage home.

• Inside Mount: This is where the blind sits nestled within the window casing. It’s the “cleanest” look, but it’s often impossible in older homes. Most modern cellular shades or roller blinds require 2 to 3 inches of depth to sit flush. If your frames are shallow, an inside mount will protrude awkwardly, ruining the silhouette.
• Outside Mount: In many vintage scenarios, the outside mount is actually the hero. By mounting the treatment on the trim (or just above it), you can hide window frames that have settled over time and are no longer perfectly square.

The Modern Solution: If you are determined to keep that “built-in” look despite shallow frames, certain modern products are designed with ultra-slim headrails specifically for this purpose.

Solving the “Un-Level” Dilemma

One charm of a century-old home is that it has “settled.” In reality, that means your window frames are likely a little bit trapezoidal rather than perfectly rectangular. If you hang a standard, off-the-shelf blind in an un-level frame, the gaps at the bottom will scream “crooked.”

This is where premium customization, such as Heritance® Hardwood Shutters, changes the game.

Why Shutters Work for Vintage Architecture:

Unlike a soft shade that hangs purely by gravity, a handcrafted shutter can be built with a “shimming” technique. Craftsmen can adjust the shutter frame to compensate for a window that is out of alignment, creating a perfectly level visual line that actually makes your old windows look straighter than they are.

Best Hunter Douglas Solutions for Older Homes

Not all modern shades are created equal when it comes to shallow depths. Here are the top three Hunter Douglas picks for vintage architecture:

1. Heritance® Hardwood Shutters: The gold standard. Because they use a “frame within a frame” system, they can be mounted to the outside of your trim while looking like a permanent architectural feature.

2. Vignette® Modern Roman Shades (Stacking Style): These are specifically engineered for shallow mounting depths. The stacking style avoids a bulky roll at the top, allowing them to fit where other shades won’t.  

3. Duette® Honeycomb Shades: These offer a “low-profile” track option. They provide incredible energy efficiency (essential for drafty older windows) without requiring a deep pocket for installation.

How to Measure Your Shallow Windows

To see if an inside mount is even possible, you need to measure for minimum mounting depth. Grab a steel measuring tape and follow these steps:

•  Step 1: Check the Depth. Place your tape measure against the glass and measure to the edge of the trim. If you have less than 1 inch, you will almost certainly need an Outside Mount.
• Step 2: Measure width in three places. Older windows are rarely square. Measure the width at the top, middle, and bottom.
• For Inside Mount: Use the smallest width.
• For Outside Mount: Measure to the outer edges of the trim you want to cover.
• Step 3: Measure height in three places. Measure from the top down to the sill at the left, center, and right. Use the longest measurement to ensure your shades reach the bottom.
• Step 4: Check for “Out-of-Square”. Measure the window diagonally from corner to corner. If the two numbers are different, your window is “un-level,” and you should consider a shutter or an outside mount to hide the tilt.

Final Thoughts

Don’t let shallow frames or “wonky” windows scare you into settling for basic hardware store solutions. Your home’s history is its best asset; the right window treatment shouldn’t hide that history—it should frame it.