Easy Window Valence Update: Modern Boxed look with MDF

One of the designs in our house that really bugged me when we first moved in were our valences over our windows. It screamed 70's every time I looked at them. I'm not sure why covering a curtain rod was such a faux pas back then but I am sure in 50 years people will be saying the same things about our design trends

So firstly, lets start with what is a valence?

A window valence is a type of decorative trim or covering installed at the top of a window. Traditionally, valences were used to conceal curtain hardware or add a finished look to a window treatment. They can be made from fabric, wood, or MDF and come in various styles—from soft, curved designs to clean, modern boxed shapes. In our house, the valences are wooden coverings that frame the top of the window, covering the top of the window and curtain rod.

My husband and I were mulling over how to fix the valences. It seemed like a huge project that would entail cutting back drywall and repairing the ceiling so we tabled it for a long time. But this past fall when we were doing our reno in the basement our contractor (also uncle) had a great idea that he did in his own home: we cut them down to a 90 degree angle and covered them in 1/4 inch thick mdf. I then filled the nail holes and smoothed out edges with caulking, also primed and then painted them. The result is a much more open window that has a more modern aethestic. And we were able to accomplish this without cutting drywall or damaging the ceiling.

Our living room before the valence update. You can see the wood panel covers the top part of the window and curtain rod.

The Process

1. Cutting Back the Existing Valences

First, we carefully cut back the valences to create sharp, 90-degree angles. This instantly simplified the shape and laid the groundwork for the clean-lined look we were going for.

2. Covering with MDF

Next, we covered the frames with 1/4 inch thick MDF. The thin MDF was perfect—lightweight, easy to work with, and created smooth, flat surfaces. We measured, cut, and attached each piece, taking care to create clean corners.

3. Filling, Caulking, and Smoothing

Once everything was in place, we filled the nail holes and any small gaps with caulk. Caulking the edges made a huge difference, giving the boxes that seamless, built-in appearance we were hoping for. After everything dried, we gave the MDF a light sanding where needed to smooth out any rough spots.

4. Priming

Before painting, we applied a coat of primer. MDF tends to absorb paint unevenly, so priming is essential for a clean, professional finish.

5. Painting with Benjamin Moore White Dove

For the final touch, we painted the valences with two coats of our existing wall color—Benjamin Moore White Dove. This warm white ties everything together beautifully and helps the valences blend right in while still adding that subtle architectural detail we love.

We measured how far back we need to cut back the valence to show curtain rod

My husband measuring his cuts

Here is the progress after cutting back the valence

The valence now gone and covered with mdf

In the above pictures you can see how we measured and cut back the valences and covered them in mdf to create a smooth, clean finish.

The Result

The new squared-off valences feel intentional and modern, complementing the rest of the space without drawing too much attention. It’s amazing how a little MDF, caulk, and paint can completely change the look and feel of a room.

Our living room now with cleaner lines and a more open feeling window.