Painting Window Trim

Table of Contents

Painting your interior window trim is a quick and affordable way to spruce up any room. If your existing trim has become discolored or beaten up over the years or possibly was never painted, then the next logical step is to paint it.

Material List

  • 1-2 Inch Trim Paint Brush
  • Painters Tape
  • Interior Trim Paint With A Glossy Finish
  • Drop Cloth
  • Wood Filler
  • Grit Sandpaper

Step 1: Tape The Interior Side of Trim

You can use either painters tape or masking tape for this step.

Step 2: Tape The Exterior Side Of Trim

Follow the same process on the exterior side of the trim. 

Step 3: Fill In Holes

This is where the wood filler will come in handy. If you have any holes in the trim, you’ll want to fill them, let them dry then sand them.

Step 4: Paint Trim

You’ll first want to paint the parts of the trim that are facing the room, then move on to the outer pieces. Circling back to the materials list, the type of paint you choose will depend on the type of trim you have. Ask your local painting store which one is best based on wheteher you have aluminum, vinyl, or wood trim. Since most people have wood interior trim, we’ll just say that high-quality latex gloss paint is the best choice. 

Step 5: Remove Tape

Go ahead and remove the tape you applied on the inside and exterior of the trim. Hopefully you didn’t paint too much over it so it’s still removable.