6-Step Guide to Painting Window Trim

Home Tips

Painting your window trim seems easy at a glance, but attaining professional results might be a bit challenging for DIY purposes. As much as you want to hire an expert, your budget might be a bit tight for the timing. Nevertheless, you must invest in the right painting tools and materials to avoid vulnerable window trim that may cause burglar attacks and other disasters.

Before painting window trim, you must first prepare the essential materials you need and avoid skipping preparations. Despite the slight additional expense, these painting trim tips will pay off praiseworthy results. Here is a guide for painting trim that you can use to your advantage.

Interior window trim ideas


What You Need

Take some time to get these essential painting tools and materials before doing some arduous work.

  • Paint scraper: A paint scraper is necessary when removing old loose paint before painting.
  • Painter’s tape: A one-and-a-half-inch width will help tap off floors and windows to avoid excess paint.
  • Paintbrush: A trimming paintbrush (between 1 ½ to 2 inches) should have wedge-shaped bristles to access narrow spaces.
  • Paint: Ensure that the paint is for trims and frames only.
  • Sanding sponges: If possible, prepare medium, fine, and extra-fine grit sponges for different stages of the painting process.
  • Caulk and caulk gun: These two are essential in caulking cracks and gaps before the painting process.
  • Wood Filler: A wood filler helps fill the hole in the window trim’s surface for a smooth finish.

Don’t Skip Prep

Although many DIY painters proceed to paint right away, a prep job is necessary to make the surface easier to tape during the main process. Make sure to take some time to do these steps to prepare the surface in accepting the new paint.

  • Scrape away loose paint if there’s any.
  • Shave old hardened caulking.
  • Clean the window trim from dust and dirt.
  • Smooth the edges with sandpaper or a sanding sponge.
  • Seal the seams by applying a new caulk.

6 Steps in Painting Window Trim

You can always paint interior window trim at any time, but exterior ones have lesser flexibility. You must ensure that the weather is dry and the temperature is between 50 to degrees Fahrenheit. Too hot temperatures can affect the quality of the finish while painting during a windy day might spatter paint on your home’s sidings. Now, you are ready to start learning about the following easy steps in the painting window trim.

1. Ensure that the window trim is ready to receive new paint.

Before dripping the paint to the window trim, the trim must be clean enough to accept new paint. In case of stubborn stains, dilute a non-soapy detergent to warm water and scrub the surface using an abrasive sponge. Then, sand the surface to smoothen the surface, making the paint stick well to the trim.

2. Use painter’s tape to mask areas that don’t need painting.

A painter’s tape protects the surface of your wall and other parts around the window trim from any paint drips or spills. Apply the tape while leaving a two-inch gap on both sides of the tape. Then, take a few steps back and imagine what the will area looks like once the painting is complete.

3. Check and fill the holes.

Another significant step that you should not skip is to fill the holes in the wooden window trim. Using a wood filler, you can visually fill small holes for a smooth finish. Don’t forget to sand the wood after the filler dries, especially if the wood is not white.

4. Start painting like a pro.

After the window treatments, you can now start painting the window trim. If you have provided enough masking, you can brush the paint over the window trim, but do not go beyond the tape markings. You must also avoid putting too much paint as it will make the tape get stuck. A less messy way to paint is by starting with the interior and then moving to the outer part of the window trim. It is recommendable to apply up to two coats for a long-lasting finish while ensuring enough time before applying the next coat.

5. Pull the tape off the window trim.

Wait for the paint to dry well before removing the tape on the window trim. Carefully pull the tape and inspect if the lines are clean enough. If it is not the case, use a sharp utility knife to cut the area until you get a satisfactory perfect line.

6. Remove overpaint from the glass.

While working, it is inevitable to spill some paint on the windowpanes that may ruin the look of your freshly painted window trim. Fortunately, you can still scrape excess paint from the windowpane, even if it has dried already, using a snap-off blade and a glass razor scraper. Just place the blade along the windowpane edge and cut along its outer edge for a clean-cut line. Then, a glass razor scrape will remove the stuck pain off the window glass.

Window trims also need to be maintained regularly, and painting them is the most essential way to do so. By following the steps above, you are now ready to paint your home’s window trim no matter what color you prefer. Remember that having the right painting tools and materials is the key to attain a professional painting result without spending much time and money on hiring a worker.